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celestra.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>Celestra</title>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
<meta name="Author" content="Czigler Ferenc" />
<meta name="Copyright" content="(C) Copyright Czigler Ferenc" />
<link rel="stylesheet" href="u87.css" type="text/css" />
<!--<link rel="icon" href="favicon.ico" type="image/x-icon" />-->
<script> var CEL = { VERSION: "This is another sample library." }; </script>
<script src="celestra.min.js"></script>
<style>
#fsdiv { padding: 20px; }
header {
padding: 1rem;
/*background-color: #222;*/
color: white;
/*background-image: url("erik-ringsmuth-2000.jpg");
background-repeat: no-repeat;
background-size: cover;
/*background-attachment: fixed;*/
/*background-size: contain;*/
background: linear-gradient(27deg, #151515 5px, transparent 5px) 0 5px, linear-gradient(207deg, #151515 5px, transparent 5px) 10px 0px, linear-gradient(27deg, #222 5px, transparent 5px) 0px 10px, linear-gradient(207deg, #222 5px, transparent 5px) 10px 5px, linear-gradient(90deg, #1b1b1b 10px, transparent 10px), linear-gradient(#1d1d1d 25%, #1a1a1a 25%, #1a1a1a 50%, transparent 50%, transparent 75%, #242424 75%, #242424);
background-size: 20px 20px;
background-color: #131313;
}
footer a, footer a:link, footer a:visited, footer a:active, footer a:hover,
nav a, nav a:visited, nav a:active, nav a:hover {
color: white !important; /* u87 v0.9.13 */
}
/*@media (max-width: 575.98px) { td { display: block; width: 100% !important; } }*/
</style>
</head>
<body>
<header class="center">
<pre class="center b font-l" style="background-color: transparent;/*black*/ color: white; line-height: 1.2;">
___ ____ __ ____ ___ ____ ____ __
/ __)( ___)( ) ( ___)/ __)(_ _)( _ \ /__\
( (__ )__) )(__ )__) \__ \ )( ) / /(__)\
\___)(____)(____)(____)(___/ (__) (_)\_)(__)(__)
</pre>
<!--<h1 class="heading-d">Celestra</h1>-->
<nav><b>
<a href="#download" class="nobr">Download</a>
//
<a href="#functions" class="nobr">Functions</a>
//
<a href="#samples" class="nobr">Samples</a>
//
<a href="#license" class="nobr">License</a>
//
<a href="#footer" class="nobr">Contact</a>
//
<a href="#" onclick=" CEL.importStyle('u87-dark.css'); " class="nobr"><i>Dark</i></a>
/
<a href="#" onclick=" CEL.importStyle('u87-blue.css'); " class="nobr"><i>Blue</i></a>
/
<a href="#" onclick=" CEL.importStyle('u87-light.css'); " class="nobr"><i>Light</i></a>
</b></nav>
</header>
<main class="container">
<h2 id="download">Download</h2>
<p><strong>A helper JavaScript library with useful functions and polyfills and zero dependencies.</strong></p>
<p>This library isn't compatible with the Node.js.</p>
<p>Latest version: 5.6.1</p>
<p>Date: 2024-06-06T19:12:17.009Z</p>
<p><b>Tested on these browsers:</b></p>
<ul>
<li>Windows Firefox</li>
<li>Windows Chrome</li>
<li>Windows Edge</li>
<li>iOS Safari</li>
<li>iOS Firefox</li>
<li>iOS Chrome</li>
<li>iOS Edge</li>
<li>Android Firefox</li>
<li>Android Chrome</li>
<li>Android Samsung Internet</li>
<li>Android Edge</li>
</ul>
<p>The functions are available in the <code>celestra</code> and/or <code>CEL</code> object.</p>
<table class="table-responsive-sm table-striped">
<tr>
<td class="center"><b>Edition</b></td>
<td class="center"><b>Filename</b></td>
</tr>
<tr>
<td>developer</td>
<td><a href="celestra.dev.js" target="_blank">celestra.dev.js</a></td>
</tr>
<tr>
<td>minified</td>
<td><a href="celestra.min.js" target="_blank">celestra.min.js</a></td>
</tr>
<tr>
<td>ES6 module</td>
<td><a href="celestra.esm.js" target="_blank">celestra.esm.js</a></td>
</tr>
<tr>
<td class="center">CUT testpage<br/>Celestra Unit Tester</td>
<td><a href="unittest.html" target="_blank">unittest.html</a></td>
</tr>
<tr>
<td class="center">Version history</td>
<td><a href="CHANGELOG.md" target="_blank">CHANGELOG.md</a></td>
</tr>
</table>
<p>DEV and MIN editions: If the <code>CEL</code> global variable is used before the loading of the library, then the value of the variable is saved and you can restore with the <code>noConflict();</code> function.</p>
<h3>Removed polyfills</h3>
<p>Some polyfills have been removed in v3.1.0 and v3.8.0 and v5.6.0. With these files can be reusued the old polyfills if needed.</p>
<table class="table-responsive-sm table-striped">
<tr>
<td class="center"><b>edition</b></td>
<td class="center"><b>filename</b></td>
</tr>
<tr>
<td>developer</td>
<td><a href="celestra-polyfills.dev.js" target="_blank">celestra-polyfills.dev.js</a></td>
</tr>
<tr>
<td>minified</td>
<td><a href="celestra-polyfills.min.js" target="_blank">celestra-polyfills.min.js</a></td>
</tr>
</table>
<h3>Cheatsheets</h3>
<p>Celestra cheatsheet: <a href="celestra-cheatsheet.pdf" target="_blank">celestra-cheatsheet.pdf</a></p>
<p>JavaScript cheatsheet: <a href="js-cheatsheet.pdf" target="_blank">js-cheatsheet.pdf</a></p>
<h3>Apps</h3>
<p>BTC standalone app: <a href="btc.app.html" target="_blank">btc.app.html</a></p>
<p>RPG dice roller: <a href="testgame.html" target="_blank">testgame.html</a></p>
<p>Demo plugin documentation: <a href="celestra-demo-plugin.html" target="_blank">celestra-demo-plugin.html</a></p>
<p>Demo plugin developer source: <a href="celestra-demo-plugin.dev.js" target="_blank">celestra-demo-plugin.dev.js</a></p>
<p>Demo plugin minified source: <a href="celestra-demo-plugin.min.js" target="_blank">celestra-demo-plugin.min.js</a></p>
<h3>How to import the ESM edition</h3>
<pre><script type="module">
// import the celestra object
import { celestra } from "./celestra.esm.js";
window.celestra = celestra;
window.CEL = celestra;
// import with default with name
import { default as celestra } from "./celestra.esm.js";
window.celestra = celestra;
window.CEL = celestra;
// import with default export
import defaultExport from "./celestra.esm.js";
window.celestra = defaultExport;
window.CEL = defaultExport;
</script></pre>
<h3>Celestra v3.0.0 (Hera) changes</h3>
<ul>
<li>Only modern browsers (ES6+) are supported. The Internet Explorer 11 and W10M Edge have been removed from the supported browsers.</li>
<li>If you would like to use Celestra with older browsers, then you can download the latest v2.x version here: <a href="https://github.com/Serrin/Celestra/releases" target="_blank">https://github.com/Serrin/Celestra/releases</a></li>
<li>The library sources have been merged and all of the ES6E functions are available in the <b>celestra.dev.js</b> and <b>celestra.min.js</b></li>
<li>Many functions have been deprecated or removed.</li>
</ul>
<h3>Celestra v3.6.0 (Galactica) changes</h3>
<ul>
<li>CommonJS and AMD module compatibility have been removed.</li>
<li>In the ESM (ECMAScript 6 module) edition only the whole celestra object is exported as default export and as standalone object.</li>
<li>Many functions have been deprecated or removed.</li>
</ul>
<h3>Celestra v5.0.0 (Defiant) changes</h3>
<ul>
<li>The underscore <code>_</code> short object name has been changed to <code>CEL</code> to avoid the compatibility issues.<br/>If need to use the old short name, then with this code will be available again: <code>window._ = window.celestra;</code>.</li>
</ul>
<h3>Celestra v5.3.0 (Voyager) changes</h3>
<ul>
<li>Added a new code section: <b>Abstract functions</b> and new functions.</li>
</ul>
<h3>Celestra v5.5.0 changes</h3>
<ul>
<li>The Math functions are available in the main code files (dev, min, esm) instead of the Math plugins.</li>
</ul>
<hr/>
<h2 id="functions">Functions</h2>
<p><span class="removed">Removed</span> and <span class="deprecated">Deprecated</span> labels: Don't use these in production.</p>
<h3>Core API</h3>
<p>These functions are available in the <code>celestra</code> and/or <code>CEL</code> objects.
<br/>Example: <code>CEL.sleep();</code></p>
<div>
<table class="table-responsive table-striped">
<tr>
<td style="width: auto; min-width: 33%;"><b>Name</b></td>
<td><b>Description</b></td>
</tr>
<tr>
<td><code>celestra.noConflict();</code></td>
<td>
<p>Restore the previous <code>CEL</code> object value and return the <code>celestra</code> object to create a new alias.</p>
<p><span class="info">Tip: You can make a new alias without this function too. Example: <code>window._cel = window.celestra;</code></span></p>
<p><span class="info">In the ESM edition only returns the celestra object.</code></span></p>
</td>
</tr>
<tr>
<td><code>celestra.VERSION;</code></td>
<td>The library version.</td>
</tr>
<tr>
<td><code>BASE16;</code></td>
<td><code>"0123456789ABCDEF"</code><br/>Can be used with the ID generator functions.</td>
</tr>
<tr>
<td><code>BASE32;</code></td>
<td><code>"234567ABCDEFGHIJKLMNOPQRSTUVWXYZ"</code><br/>Can be used with the ID generator functions.</td>
</tr>
<tr>
<td><code>BASE36;</code></td>
<td><code>"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"</code><br/>Can be used with the ID generator functions.</td>
</tr>
<tr>
<td><code>BASE58;</code></td>
<td><code>"123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"</code><br/>Can be used with the ID generator functions.</td>
</tr>
<tr>
<td><code>BASE62;</code></td>
<td><code>"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"</code><br/>Can be used with the ID generator functions.</td>
</tr>
<tr>
<td><code>WORDSAFEALPHABET;</code></td>
<td><code>"23456789CFGHJMPQRVWXcfghjmpqvwx"</code><br/>Can be used with the ID generator functions.</td>
</tr>
<tr>
<td><code>b64Encode(<string>);</code></td>
<td>Unicode compatible string to base64 converter. Return the encoded string.</td>
</tr>
<tr>
<td><code>b64Decode(<string>);</code></td>
<td>Unicode compatible base64 to string converter. Return the original string.</td>
</tr>
<tr>
<td><code>assertEq(<msg>,<value1>,<value2>[,strict=true]);</code></td>
<td>This function throws an error with the message if the value1 and value2 aren't equals. The message parameter is mandatory and has to be a string. The strict parameter is optional and can be a boolean. The return value is <code>true</code>, when the test was success.</td>
</tr>
<tr>
<td><code>assertFalse(<msg>,<value>);</code></td>
<td>This function throws an error with the message if the value is true. The message parameter is mandatory and has to be a string. The return value is <code>true</code>, when the test was success.</td>
</tr>
<tr>
<td><code>assertNotEq(<msg>,<value1>,<value2>[,strict=true]);</code></td>
<td>This function throws an error with the message if the value1 and value2 are equals. The message parameter is mandatory and has to be a string. The strict parameter is optional and can be a boolean. The return value is <code>true</code>, when the test was success.</td>
</tr>
<tr>
<td><code>assertTrue(<msg>,<value>);</code></td>
<td>This function throws an error with the message if the value is false. The message parameter is mandatory and has to be a string. The return value is <code>true</code>, when the test was success.</td>
</tr>
<tr>
<td><code>bind(<function>,<context>);</code></td>
<td>Returns a function that is bound to a context. Both of the parameters are mandatory.</td>
</tr>
<tr>
<td><code>classof(<variable>[,type[,throw=false]]);</code></td>
<td><span class="info">Old name before v5.4.0: <code>getType</code>.</span><br/>Get the real type of a variable. If this is an object, then the return value is the detailed object type (e.g.: array). If the type (string) parameter is given, then the return value (boolean) is the equality of the type of the variable and the second parameter. If the third parameter (boolean) is true and the type of the variable and the second parameter aren't equals, then the function is throwing a <code>TypeError();</code>, else the return value is true.</td>
</tr>
<tr>
<td><code>constant(<value>);</code></td>
<td>A one time assignment function to create a constant value in ES5. This returns a function, which returns the given value. (In math: <code>f(x)=x</code>)</td>
</tr>
<tr>
<td><code>delay(<ms>).then(<callback>);</code></td>
<td>
<p>A promise based delay function. The ms parameter is mandatory and have to be an integer (milliseconds).</p>
<p><b>Sample:</b></p>
<p><button onclick="CEL.delay(5000).then(() => alert('5 seconds')).catch(console.log.bind(console)) .finally(() => alert('done'));">try</button></p>
<pre>
CEL.delay(5000)
.then(() => alert("5 seconds"))
.catch(console.log.bind(console))
.finally(() => alert("done"));</pre>
</td>
</tr>
<tr>
<td><code>extend([deep,]<target>,<source1>[,sourceN]);</code></td>
<td>This is an enhanced version of the <code>Object.assign</code> method. The deep parameter (boolean) is optional and sets the deep copy (recursive) of the sources.</td>
</tr>
<tr>
<td><code>F();</code></td>
<td>This function returns false.</td>
</tr>
<tr>
<td><code>filterIn(<object>,<callback>);</code></td>
<td>
<p></p>The filterIn() function executes a provided function once for each object property and returns a new object with the properties which were be filtered. The object parameter is mandatory and has to be an object. The callback parameter is mandatory and has to be a function. The parameter function will be called with these arguments: key value, key, object.</p>
<p><b>Example:</b><pre>var o1 = {"a": 1, "b": 2, "c": 3};
console.log(o1);
// Object { a: 1, b: 2, c: 3 }
var o2 = CEL.filterIn(o1, (v, p, o) => (v > 1));
console.log(o2);
// Object { b: 2, c: 3 }</pre>
</td>
</tr>
<tr>
<td><code>forIn(<object>,<callback>);</code></td>
<td>The forIn() function executes a provided function once for each object property. The object parameter is mandatory and has to be an object. The callback parameter is mandatory and has to be a function. The parameter function will be called with these arguments: key value, key, object.</td>
</tr>
<tr>
<td><code>getUrlVars([str=location.search]);</code></td>
<td>Get the values of the url variables in an object from the <code>location.search</code> <b>(default value)</b> or another given url. The str parameter name is optional and can be a string.
<br/>Example: <code>"?showall=true&order_by=updated&o=asc"</code> -> <code>Object { showall: "true", order_by: "updated", o: "asc" }</code></td>
</tr>
<tr>
<td><code>identity(<value>);</code></td>
<td>Return the given value. (In math: <code>f(x)=x</code>)</td>
</tr>
<tr>
<td><code>inherit(<subclass>,<superclass>);</code></td>
<td>Prototype inheritance.</td>
</tr>
<tr>
<td><code>javaHash(<data>[,hexa=false]);</code></td>
<td>Java <code>String.hashCode()</code> implementation in Javascript - this is a non-cryptographic hash function. The data parameter is mandatory and can be any type. The hexa parameter is optional and can be a boolean and sets the hexadecimal conversion of the return value and the default value is false. Return the generated integer hash.</td>
</tr>
<tr>
<td><code>nanoid([size=21[,alphabet="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_-"]]);</code></td>
<td>Generate a nanoid. The size parameter is optional and the default value is 21. The alphabet parameter is optional and the default value is "A-Za-z0-9_-". The return value is the generated nanoid (string).<br>Example ID: <code>"QsZA2VVTgFIF3D-qFk5oc"</code></td>
</tr>
<tr>
<td><code>noop();</code></td>
<td>It's an empty function (no operation) that returns undefined and usable for optional callback arguments.</td>
</tr>
<tr>
<td><code>obj2string(<object>);</code></td>
<td>Convert object to a querystring. The return value is the string. The object parameter is mandatory.</td>
</tr>
<tr>
<td><code>randomBoolean();</code></td>
<td>Get a random boolean value. The return value is <code>true</code> or <code>false</code>.</td>
</tr>
<tr>
<td><code>randomID([hyphens=true][,usedate=false]);</code></td>
<td>
<span class="deprecated">DEPRECATED in v5.5.4</span>
<br/><span class="removed">REMOVED in v5.6.0</span>
<br/><span class="info">Can be replaced with the <code>crypto.randomUUID();</code>, which is polyfilled in this library.</span>
<br/>Generate a GUID/UUID v4 random ID. The hyphens and useDate parameters are optional and can be a boolean. The return value is a string.
</td>
</tr>
<tr>
<td><code>randomString([length[,specialCharactersEnabled=false]]);</code></td>
<td>
<span class="deprecated">DEPRECATED in v5.5.2</span>
<br/><span class="removed">REMOVED in v5.6.0</span>
<br/><span class="info">Can be replaced with with the <code>CEL.nanoid();</code>.</span>
<br/>Generate a random string. The length parameter is optional and can be a number and the default value is 100. The specialCharactersEnabled parameter is optional and can be a boolean and the default value is false. Return the generated string.</td>
</tr>
<tr>
<td><code>sizeIn(<object>);</code></td>
<td>Returns the count of the owned properties of the given object. The object parameter is mandatory.</td>
</tr>
<tr>
<td><code>popIn(<object>,<property>);</code></td>
<td>The popIn() function deletes the property in the object and returns the value of the deleted property. If the property doesn't exist in the object, then the return value is undefined. The object parameter is mandatory and has to be an object. The property parameter is mandatory.</td>
</tr>
<tr>
<td><code>sleep(<ms>).then(<callback>);</code></td>
<td>This is an alias of the <code>delay(<ms>).then(<callback>);</code>.</td>
</tr>
<tr>
<td><code>T();</code></td>
<td>This function returns true.</td>
</tr>
<tr>
<td><code>timestampID([size=21[,alphabet="123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"]]);</code></td>
<td>Generate a timestamp based sortable ID. The size parameter is optional and the default value is 21, but if the given value smaller than 12, then the value will be 12. The alphabet parameter is optional and the default value is <code>"123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"</code>, same as BASE58. The return value is the generated id (string).<br/>Example ID: <code>"00lirtqi4e-wgGn8vGPyY"</code></td>
</tr>
<tr>
<td><code>unBind(<function>);</code></td>
<td><span class="info">Old name before v5.4.1: <code>toFunction</code>.</span><br/>Returns an unbinded function from an object method. The function parameter is mandatory.</td>
</tr>
</table>
</div>
<h3>String API</h3>
<p>These functions are available in the <code>celestra</code> and/or <code>CEL</code> objects.
<br/>Example: <code>CEL.strPropercase();</code></p>
<div>
<table class="table-responsive table-striped">
<tr>
<td style="width: auto; min-width: 33%;"><b>Name</b></td>
<td><b>Description</b></td>
</tr>
<tr>
<td><code>strAt(<string>,<index>[,newChar]);</code></td>
<td>
<p>If the newchar is undefined, then returns the unicode character, which has to be on the given index in the string. The index can be negative value (<code>-1 -> last</code>). If the index is out of the string length, then the return value is an empty string. All of the parameters are mandatory and index has to be an integer.</p>
<p>If the newChar is not undefined, then the indexed character will be replaced with the newChar and returns the modified string.</p>
</td>
</tr>
<tr>
<td><code>strCapitalize(<string>);</code></td>
<td>This function is unicode compatible and converts the first character to uppercase and the other characters to lowercase. The string parameter is mandatory. The return value is a string.</td>
</tr>
<tr>
<tr>
<td><code>strCodePoints(<string>);</code></td>
<td>Returns the array of the unicode codepoints of characters of the given string. The string parameter is mandatory.</td>
</tr>
<tr>
<td><code>strDownFirst(<string>);</code></td>
<td>This function is unicode compatible and converts the first character to lowercase. The string parameter is mandatory. The return value is a string.</td>
</tr>
<tr>
<td><code>strFromCodePoints(<collection>);</code></td>
<td>Returns the joined string of the given unicode codepoints. The collection parameter is mandatory.</td>
</tr>
<tr>
<td><code>strHTMLEscape(<string>);</code></td>
<td>This function escapes these characters: <code><</code>, <code>></code>, <code>&</code>, <code>"</code>, <code>'</code>. The String parameter is mandatory. The return value is the escaped string.</td>
</tr>
<tr>
<td><code>strHTMLRemoveTags(<string>);</code></td>
<td>Remove HTML tags from the given string. The string parameter is mandatory. The return value is the new string.</td>
</tr>
<tr>
<td><code>strUnHTMLEscape(<string>);</code></td>
<td>This function unescapes these characters: <code><</code>, <code>></code>, <code>&</code>, <code>"</code>, <code>'</code>. The String parameter is mandatory. The return value is the unescaped string.</td>
</tr>
<tr>
<td><code>strReverse(<string>);</code></td>
<td>Returns the reversed variant of the given string. In the ES6 compatible browsers the result will be unicode compatible. The string parameter is mandatory.</td>
</tr>
<tr>
<td><code>strPropercase(<string>);</code></td>
<td>This function is unicode compatible and capitalizes every word of the given string. The string parameter is mandatory. The return value is a string.<br/><b>Example:</b><br/><code>CEL.strPropercase("arthur conan doyle");</code><br/>-><br/><code>"Arthur Conan Doyle"</code></td>
</tr>
<tr>
<td><code>strSplice(<str>,<index>,<count>[,add]);</code></td>
<td>This function works like the <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/splice" target="_blank">Array.prototype.splice();</a> and can remove characters on the index or replace with other string. The return value is the modified string.</td>
</tr>
<tr>
<td><code>strTitlecase(<string>);</code></td>
<td>Alias of the <code>strPropercase(<string>);</code>.</td>
</tr>
<td><code>strUpFirst(<string>);</code></td>
<td>This function is unicode compatible and converts the first character to uppercase. The string parameter is mandatory. The return value is a string.</td>
</tr>
</table>
</div>
<h3>DOM API</h3>
<p>These functions are available in the <code>celestra</code> and/or <code>CEL</code> objects.
<br/>Example: <code>CEL.domCreate();</code></p>
<div>
<table class="table-responsive table-striped">
<tr>
<td style="width: auto; min-width: 33%;"><b>Name</b></td>
<td><b>Description</b></td>
</tr>
<tr>
<td><code>createFile(<filename>,<content>[,dataType]);</code></td>
<td>
<p>Create and save file without a server. The filename and content parameters are mandatory and have to be a string. The dataType parameter is optional and can be a string. The default value of the dataType parameter is <code>text/plain</code>.</p>
<p><span class="info">Doesn't work in iOS browsers (Safari, Firefox and Chrome) and W10M Edge 14.</span></p>
</td>
</tr>
<tr>
<td><code>domCreate(<type>[,properties[,innerHTML]]);</code></td>
<td>Create a new HTML element. The type is mandatory and has to be a string. The properties object is optional and sets the element properties. (class, style object/string, data-*, etc.) The innerHTML is optional and can be a string.</td>
</tr>
<tr>
<td><code>domCreate(<element descriptive object>);</code></td>
<td>
<p>Since v2.0.5, a new element can be created with an object. In this case the element descriptive object is mandatory. The <code>style</code> can be a subobject or a string.</p>
<p><b>Sample code:</b></p>
<pre>CEL.domCreate({
elementType: "a",
href: "https://developer.mozilla.org/en-US/",
target: "_blank",
style: {
"background-color": "red",
"color": "white"
},
innerHTML: "MDN Sample url"
});</pre>
</td>
</tr>
<tr>
<td><code>domFadeIn(<element>[, duration[,display]]);</code></td>
<td>Fade in and show animation for an element. The element is mandatory and has to be a HTML element. The duration parameter is optional and sets the animation time in milisec (the default is 500ms). The display is optional and can be a string (CSS display property values).</td>
</tr>
<tr>
<td><code>domFadeOut(<element>[,duration]);</code></td>
<td>Fade out and hide animation for an element. The element is mandatory and has to be a HTML element. The duration parameter is optional and sets the animation time in milisec (the default is 500ms).</td>
</tr>
<tr>
<td><code>domFadeToggle(<element>[,duration[,display]]);</code></td>
<td>Fade in or fade out animation which depends on the state of the element. The element is mandatory and has to be a HTML element. The duration parameter is optional and sets the animation time in millisecond (the default is 500ms). The display is optional and can be a string (CSS display property values).</td>
</tr>
<tr>
<td><code>domGetCSS(<element>[,property]);</code></td>
<td>Get a CSS property value of an element or all of the css properties in an object. The element is mandatory and has to be a HTML element. The property is optional and can be a string.</td>
</tr>
<tr>
<td><code>domGetCSSVar(<name>);</code></td>
<td>This function returns a value of a CSS variable or an empty string, if the variable is unset. The name parameter is mandatory and has to be a string. If the "--" characters are missing at the begin of the variable name, then the function will add these.</td>
</tr>
<tr>
<td><code>domHide(<element>);</code></td>
<td>Hide an element. The element is mandatory and has to be a HTML element.</td>
</tr>
<tr>
<td><code>domIsHidden(<element>);</code></td>
<td>This function determines whether the element is hidden. The element is mandatory and has to be a HTML element. The return value is boolean.</td>
</tr>
<tr>
<td><code>domReady(<callback>);</code></td>
<td>Set the document ready (content fully loaded) event.</td>
</tr>
<tr>
<td><code>domSetCSS(<element>,<property>,<value>);</code></td>
<td>Set a CSS property value of an element. The element is mandatory and has to be a HTML element. The property is mandatory and has to be a string. The value is mandatory and has to be a string.</td>
</tr>
<tr>
<td><code>domSetCSS(<element>,<properties>);</code></td>
<td>Set CSS property values of an element. The element is mandatory and has to be a HTML element. The properties object is mandatory. The object properties can be the CSS properties and the property values will be applied to the element.</td>
</tr>
<tr>
<td><code>domSetCSSVar(<name>,<value>);</code></td>
<td>This function set a value of a CSS variable. Both of the parameters are mandatory and have to be a string. If the "--" characters are missing at the begin of the variable name, then the function will add these.</td>
</tr>
<tr>
<td><code>domShow(<element>[,display]);</code></td>
<td>Show an element. The element is mandatory and has to be a HTML element. The display is optional and can be a string (CSS display values).</td>
</tr>
<tr>
<td><code>domScrollToBottom();</code></td>
<td><span class="info">Old name before v5.5.4: <code>domToBottom</code>.</span><br/>This function is scrolling to the bottom of the page.</td>
</tr>
<tr>
<td><code>domScrollToElement(<element>[,top=true]);</code></td>
<td>This function is scrolling to top or the bottom of element. The element parameter is mandatory and the top parameter is optional and can be boolean.</td>
</tr>
<tr>
<td><code>domScrollToTop();</code></td>
<td><span class="info">Old name before v5.5.4: <code>domToTop</code>.</span><br/>This function is scrolling to the top of the page.</td>
</tr>
<tr>
<td><code>domSiblings(<element>);</code></td>
<td>Get the siblings of an element. The element parameter is mandatory and the return value is the array.</td>
</tr>
<tr>
<td><code>domSiblingsLeft(<element>);</code></td>
<td>Alias of the <code>domSiblingsPrev(<element>);</code>.</td>
</tr>
<tr>
<td><code>domSiblingsNext(<element>);</code></td>
<td>Get the next siblings of an element. The element parameter is mandatory and the return value is the array.</td>
</tr>
<tr>
<td><code>domSiblingsPrev(<element>);</code></td>
<td>Get the previous siblings of an element. The element parameter is mandatory and the return value is the array.</td>
</tr>
<tr>
<td><code>domSiblingsRight(<element>);</code></td>
<td>Alias of the <code>domSiblingsNext(<element>);</code>.</td>
</tr>
<tr>
<td><code>domToElement(<htmlString>);</code></td>
<td>This function returns a HTML element which is created from the htmlString parameter. The htmlString parameter is mandatory and has to be a string.</td>
</tr>
<tr>
<td><code>domToggle(<element>[,display]);</code></td>
<td>Show or hide an element. The element is mandatory and has to be a HTML element. The display is optional and can be a string (CSS display values).</td>
</tr>
<tr>
<td><code>importScript(<script1>[,scriptN]);</code></td>
<td>
<p>Load JavaScript files. The first parameter is mandatory and has to be a string. The other parameters are optional and can be a string.</p>
<p><b>Tip:</b><br/>To prevent the caching of a js/css file use versioning in the file url. Example: <code>mylib.js?version=1.10.0</code></p>
</td>
</tr>
<tr>
<td><code>importStyle(<style1>[,styleN]);</code></td>
<td>Load CSS files. The first parameter is mandatory and has to be a string. The other parameters are optional and can be a string.</td>
</tr>
<tr>
<td><code>form2array(<form>);</code></td>
<td>Convert (serialize) form input tag names and values to an array with object elements (name and value properties). The return value is the array. The form parameter is mandatory and has to be a html form element.</td>
</tr>
<tr>
<td><code>form2string(<form>);</code></td>
<td>Convert (serialize) form input tag names and values to a query string. The return value is the string. The form parameter is mandatory and has to be a html form element.</td>
</tr>
<tr>
<td><code>getDoNotTrack();</code></td>
<td>Return the DoNotTrack setting (boolean) of the browser.</td>
</tr>
<tr>
<td><code>getFullscreen();</code></td>
<td>
Get the fullscreen element. If this isn't set, then the return value is undefined.
<br/>Please check the incompatibility issues on the <a href="http://caniuse.com/#search=fullscreen" target="_blank">http://caniuse.com/#search=fullscreen</a> page.
</td>
</tr>
<tr>
<td><code>getLocation(<success>[,error]);</code></td>
<td>Get the current location as an object with the coordinates. The success is mandatory and has to be a function. The error is optional and can be a function.</td>
</tr>
<tr>
<td><code>setFullscreenOff();</code></td>
<td>Set off the fullscreen.</td>
</tr>
<tr>
<td><code>setFullscreenOn(<selector>);</code></td>
<td>Set the fullscreen element. The selector can be a css selector string or an element.</td>
</tr>
<tr>
<td><code>qs(<selector>[,context]);</code></td>
<td>Get the first matched HTML element. The context is optional and can be an element or a selector string.</td>
</tr>
<tr>
<td><code>qsa(<selector>[,context]);</code></td>
<td>Get matched HTML elements in an array. The context is optional and can be an element or a selector string.</td>
</tr>
</table>
</div>
<h3>AJAX and CORS API</h3>
<p class="info">
These functions aren't deprecated, but it's recommend to use the <a href="https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API" target="_blank">Fetch API</a>, because it's <a href="https://caniuse.com/?search=fetch" target="_blank">supported</a> in every modern browsers.
</p>
<p>These functions are available in the <code>celestra</code> and/or <code>CEL</code> objects.
<br/>Example: <code>CEL.getJson();</code></p>
<div style="overflow-x:auto;">
<table class="table-responsive table-striped">
<tr>
<td style="width: auto; min-width: 33%;"><b>Name</b></td>
<td><b>Description</b></td>
</tr>
<tr>
<td><code>ajax(<Options object>);</code></td>
<td>Get content and send data via AJAX and CORS.</td>
</tr>
<tr>
<td><code>getJson(<url>,<success>);</code></td>
<td>Get TEXT content via AJAX. A shorthand function to the ajax() function.</td>
</tr>
<tr>
<td><code>getText(<url>,<success>);</code></td>
<td>Get JSON content via AJAX. A shorthand function to the ajax() function.</td>
</tr>
</table>
</div>
<p><b>Options object properties:</b></p>
<ul>
<li>The <b>queryType</b> is optional and can be a <b>string</b> with these values: <code>"ajax"</code> or <code>"cors"</code>. The default value is <code>"ajax"</code>.</li>
<li>The <b>type</b> is optional and can be a <b>string</b> with these values: <code>"get"</code> or <code>"post"</code>. The default value is <code>"get"</code>.</li>
<li>The <b>url</b> is mandatory and has to be a <b>string</b>.</li>
<li>The <b>data</b> is optional and has to be a <b>string</b> if the <code>type === "post"</code>.</li>
<li>The <b>format</b> is optional and can be a <b>string</b> with these values: <code>"text"</code> or <code>"json"</code> or <code>"xml"</code>. The default value is <code>"text"</code>.
<li>The <b>success</b> is mandatory and has to be a <b>function</b>.</li>
<li>The <b>error</b> is optional and can be a <b>function</b>.</li>
<li>The <b>user</b> is optional and can be a <b>string</b>.</li>
<li>The <b>password</b> is optional, but mandatory if the user is set. This parameter can be a <b>string</b>.</li>
</ul>
<h3 id="typechecking">Type checking API</h3>
<p>These functions are available in the <code>celestra</code> and/or <code>CEL</code> objects.
<br/>Example: <code>CEL.isString();</code></p>
<div>
<table class="table-responsive table-striped">
<tr>
<td style="width: auto; min-width: 33%;"><b>Name</b></td>
<td><b>Description</b></td>
</tr>
<tr>
<td><code>isArrayBuffer(<value>);</td>
<td>This function determines whether the provided value is an arraybuffer. The return value is boolean.</td>
</tr>
<tr>
<td><code>isArraylike(<value>);</code></td>
<td>This function determines whether the provided value is an iterable object. The return value is boolean.</td>
</tr>
<tr>
<td><code>isAsyncFn(<value>);</td>
<td>This function determines whether the provided value is an async function. The return value is boolean.</td>
</tr>
<tr>
<td><code>isAsyncGeneratorFn(<value>);</td>
<td>This function determines whether the provided value is an async generator function. The return value is boolean.</td>
</tr>
<tr>
<td><code>isBigInt(<value>);</td>
<td>This function determines whether the provided value is a BigInt. The return value is boolean.</td>
</tr>
<tr>
<td><code>isBoolean(<value>);</code></td>
<td>This function determines whether the provided value is a boolean. The return value is boolean.</td>
</tr>
<tr>
<td><code>isCallable(<value>);</code></td>
<td>Alias of the <code>isFunction(<value>);</code>.</td>
</tr>
<tr>
<td><code>isChar(<value>);</code></td>
<td>This function determines whether the provided value is a string with length 1 character. This function is unicode compatible. The return value is boolean.</td>
</tr>
<tr>
<td><code>isConstructorFn(<value>);</td>
<td>This function determines whether the provided value is a constructable function. The return value is boolean.</td>
</tr>
<tr>
<td><code>isDataView(<value>);</td>
<td>This function determines whether the provided value is an DataView object. The return value is boolean.</td>
</tr>
<tr>
<td><code>isDate(<value>);</code></td>
<td>This function determines whether the provided value is a date. The return value is boolean.</td>
</tr>
<tr>
<td><code>isElement(<value>);</code></td>
<td>
This function determines whether the provided value is a HTML element. The return value is boolean.
<p>
For other node types (document, text, comment, etc.) checking please read this MDN page:
<br/><a href=" https://developer.mozilla.org/en-US/docs/Web/API/Node/nodeType" target="_blank"> https://developer.mozilla.org/en-US/docs/Web/API/Node/nodeType</a>
</p>
</td>
</tr>
<tr>
<td><code>isEmptyArray(<value>);</code></td>
<td>This function determines whether the provided value is an empty array (without values). The return value is boolean.</td>
</tr>
<tr>
<td><code>isEmptyIterator(<value>);</code></td>
<td>This function determines whether the provided value is an empty iterator (without values). The return value is boolean.</td>
</tr>
<tr>
<td><code>isEmptyMap(<value>);</code></td>
<td>This function determines whether the provided value is an empty map (without properties). The return value is boolean.</td>
</tr>
<tr>
<td><code>isEmptyObject(<value>);</code></td>
<td>This function determines whether the provided value is an empty object (without properties). The return value is boolean.</td>
</tr>
<tr>
<td><code>isEmptySet(<value>);</code></td>
<td>This function determines whether the provided value is an empty set (without values). The return value is boolean.</td>
</tr>
<tr>
<td><code>isError(<value>);</td>
<td>This function determines whether the provided value is an error object. The return value is boolean.</td>
</tr>
<tr>
<td><code>isFalsy(<value>);</td>
<td>This function determines whether the provided value is falsy. The return value is boolean. For more information please read the <a href="https://developer.mozilla.org/en-US/docs/Glossary/Falsy" target="_blank">MDN Article</a>!</td>
</tr>
<tr>
<td><code>isFloat(<value>);</code></td>
<td>This function determines whether the provided value is a float number. The return value is boolean.</td>
</tr>
<tr>
<td><code>isFunction(<value>);</code></td>
<td>This function determines whether the provided value is a function. The return value is boolean.</td>
</tr>
<tr>
<td><code>isGeneratorFn(<value>);</td>
<td>This function determines whether the provided value is a generator function. The return value is boolean.</td>
</tr>
<tr>
<td><code>isIterable(<value>);</code></td>
<td>This function determines whether the provided value is an iterable collection. The return value is boolean.</td>
</tr>
<tr>
<td><code>isIterator(<value>);</code></td>
<td>This function determines whether the provided value is an iterator. The return value is boolean.</td>
</tr>
<tr>
<td><code>isMap(<value>);</code></td>
<td>This function determines whether the provided value is a map. The return value is boolean.</td>
</tr>
<tr>
<td><code>isNil(<value>);</code></td>
<td>This function determines whether the provided value is null or undefined or NaN. The return value is boolean.</code>.</td>
</tr>
<tr>
<td><code>isNull(<value>);</code></td>
<td>This function determines whether the provided value is null. The return value is boolean.</td>
</tr>
<tr>
<td><code>isNullOrUndefined(<value>);</code></td>
<td>This function determines whether the provided value is null or undefined. The return value is boolean.</td>
</tr>
<tr>
<td><code>isNumber(<value>);</code></td>
<td>This function determines whether the provided value is a number. The return value is boolean.</td>
</tr>
<tr>
<td><code>isNumeric(<value>);</code></td>
<td>This function determines whether the provided value is a number or can be converted to number. The return value is boolean.</td>
</tr>
<tr>
<td><code>isObject(<value>);</code></td>
<td>This function determines whether the provided value is an object and not null. The return value is boolean.</td>
</tr>
<tr>
<td><code>isPlainObject(<value>);</td>
<td>This function determines whether the provided value is an object, which own prototype is the Object.prototype or null. The return value is boolean.</td>
</tr>
<tr>
<td><code>isPrimitive(<value>);</code></td>
<td>This function determines whether the provided value is not null, not object and not function. The return value is boolean.</td>
</tr>
<tr>
<td><code>isPromise(<value>);</td>
<td>This function determines whether the provided value is a promise object. The return value is boolean.</td>
</tr>
<tr>
<td><code>isRegexp(<value>);</code></td>
<td>This function determines whether the provided value is a regexp. The return value is boolean.</td>
</tr>
<tr>
<td><code>isSameArray(<array1>,<array2>);</code></td>
<td>This function checks the value equality of the given arrays. The return value is boolean and both of the parameters are mandatory and have to be an array.</td>
</tr>
<tr>
<td><code>isSameIterator(<iter1>,<iter2>);</code></td>
<td>This function checks the value equality of the given iterator. The return value is boolean and both of the parameters are mandatory and have to be a collection (iterator / iterable object).</td>
</tr>
<tr>
<td><code>isSameMap(<map1>,<map2>);</code></td>
<td>This function checks the property and value equality of the given maps. The return value is boolean and both of the parameters are mandatory and have to be a map.</td>
</tr>
<tr>
<td><code>isSameObject(<object1>,<object2>);</code></td>
<td>This function checks the property and value equality of the given objects. The return value is boolean and both of the parameters are mandatory and have to be an object.</td>
</tr>
<tr>
<td><code>isSameSet(<set1>,<set2>);</code></td>
<td>This function checks the value equality of the given sets. The return value is boolean and both of the parameters are mandatory and have to be a set.</td>
</tr>
<tr>
<td><code>isSet(<value>);</code></td>
<td>This function determines whether the provided value is a set. The return value is boolean.</td>
</tr>
<tr>
<td><code>isString(<value>);</code></td>
<td>This function determines whether the provided value is a string. This function is unicode compatible. The return value is boolean.</td>
</tr>
<tr>
<td><code>isSymbol(<value>);</code></td>
<td>This function determines whether the provided value is a symbol. The return value is boolean.</td>
</tr>
<tr>
<td><code>isTruthy(<value>);</td>
<td>This function determines whether the provided value is truthy. The return value is boolean. For more information please read the <a href="https://developer.mozilla.org/en-US/docs/Glossary/Truthy" target="_blank">MDN Article</a>!</td>
</tr>
<tr>
<td><code>isTypedArray(<value>);</td>
<td>This function determines whether the provided value is a typedarray. The return value is boolean.</td>
</tr>
<tr>
<td><code>isUndefined(<value>);</code></td>
<td>This function determines whether the provided value is undefined. The return value is boolean.</td>
</tr>
<tr>
<td><code>isWeakMap(<value>);</code></td>
<td>This function determines whether the provided value is a weakmap. The return value is boolean.</td>
</tr>
<tr>
<td><code>isWeakSet(<value>);</code></td>
<td>This function determines whether the provided value is a weakset. The return value is boolean.</td>
</tr>
</table>
</div>
<h3 id="cookie">Cookie API</h3>
<p>These functions are available in the <code>celestra</code> and/or <code>CEL</code> objects.
<br/>Example: <code>CEL.setCookie();</code></p>
<p>
Cookie values help:
<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie" target="_blank">MDN</a>,
<a href="https://web.dev/samesite-cookies-explained" target="_blank">web.dev</a>
</p>
<div>
<table class="table-responsive table-striped">
<tr>
<td style="width: auto; min-width: 33%;"><b>Name</b></td>
<td><b>Description</b></td>
</tr>
<tr>
<td><code>clearCookies([path="/"[,domain[,secure[,SameSite="Lax"[,HttpOnly]]]]]);</code></td>
<td>
<p>Clear all of the cookies. The return value (boolean) is determines whether the cookie was set with the name before the removing.</p>
<p><b>Function parameters:</b></p>
<ul>
<li>The path is optional and can be a string. <i>(Default value: "/")</i> To the local path set the <code>""</code> value!</li>
<li>The domain is optional and can be a string.</li>
<li>The secure is optional and can be a boolean.</li>
<li>The SameSite is optional and can be a string. <i>("Lax", "Strict", "None", default value: "Lax")</i></li>
<li>The HttpOnly is optional and can be a boolean.</li>
</ul>
</td>
</tr>
<tr>
<td><code>clearCookies(<Options object>);</code></td>
<td>In this case the names of object properties are the same as the function arguments and the default values are the same too.</td>
</tr>
<tr>
<td><code>getCookie([name]);</code></td>
<td>
Get the value of a cookie or all cookies in an object.
<br/>With the name parameter (string) the return value is the current cookie value or null. <br/>Without the parameter the return value is an object with the values or an empty object.
</td>
</tr>
<tr>
<td><code>hasCookie(<name>);</code></td>
<td>This function determines whether the cookie is set with the name parameter. The return value is boolean.</td>
</tr>
<tr>
<td><code>removeCookie(<name>[,path="/"[,domain[,secure[,SameSite="Lax"[,HttpOnly]]]]]);</code></td>
<td>
<p>Remove a cookie. The return value (boolean) is determines whether the cookie was set with the name before the removing.</p>
<p><b>Function parameters:</b></p>
<ul>
<li>The name is mandatory and has to be a string.</li>
<li>The path is optional and can be a string. <i>(Default value: "/")</i> To the local path set the <code>""</code> value!</li>
<li>The domain is optional and can be a string.</li>
<li>The secure is optional and can be a boolean.</li>
<li>The SameSite is optional and can be a string. <i>("Lax", "Strict", "None", default value: "Lax")</i></li>
<li>The HttpOnly is optional and can be a boolean.</li>
</ul>
<p>The return value (boolean) is determines whether the cookie was set with the name before the removing.</p>
</td>
</tr>
<tr>
<td><code>removeCookie(<Options object>);</code></td>
<td>In this case the names of object properties are the same as the function arguments and the default values are the same too.</td>
</tr>
<tr>
<td><code>setCookie(<name>,<value>[,hours="8760"[,path="/"[,domain[,secure[,SameSite="Lax"[,HttpOnly]]]]]]);</code></td>
<td>
<p>Set a cookie.</p>
<p><b>Function parameters:</b></p>