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functions.js
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functions.js
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function isObj(obj) {
return (obj && typeof obj === 'object' && obj !== null) ? true : false;
}
function createEl(element = 'div') {
return document.createElement(element);
}
function emptyEl(el) {
while(el.firstChild)
el.removeChild(el.firstChild);
}
function elem(selector, parent = document){
let elem = isObj(parent) ? parent.querySelector(selector) : false;
return elem ? elem : false;
}
function elems(selector, parent = document) {
return isObj(parent) ? parent.querySelectorAll(selector) : [];
}
function pushClass(el, targetClass) {
if (isObj(el) && targetClass) {
let elClass = el.classList;
elClass.contains(targetClass) ? false : elClass.add(targetClass);
}
}
function deleteClass(el, targetClass) {
if (isObj(el) && targetClass) {
let elClass = el.classList;
elClass.contains(targetClass) ? elClass.remove(targetClass) : false;
}
}
function modifyClass(el, targetClass) {
if (isObj(el) && targetClass) {
const elClass = el.classList;
elClass.contains(targetClass) ? elClass.remove(targetClass) : elClass.add(targetClass);
}
}
function containsClass(el, targetClass) {
if (isObj(el) && targetClass && el !== document ) {
return el.classList.contains(targetClass) ? true : false;
}
}
function isChild(node, parentClass) {
let objectsAreValid = isObj(node) && parentClass && typeof parentClass == 'string';
return (objectsAreValid && node.closest(parentClass)) ? true : false;
}
function elemAttribute(elem, attr, value = null) {
if (value) {
elem.setAttribute(attr, value);
} else {
value = elem.getAttribute(attr);
return value ? value : false;
}
}
function deleteChars(str, subs) {
let newStr = str;
if (Array.isArray(subs)) {
for (let i = 0; i < subs.length; i++) {
newStr = newStr.replace(subs[i], '');
}
} else {
newStr = newStr.replace(subs, '');
}
return newStr;
}
function isBlank(str) {
return (!str || str.trim().length === 0);
}
function isMatch(element, selectors) {
if(isObj(element)) {
if(selectors.isArray) {
let matching = selectors.map(function(selector){
return element.matches(selector)
})
return matching.includes(true);
}
return element.matches(selectors)
}
}
function closestInt(goal, collection) {
return collection.reduce(function (prev, curr) {
return (Math.abs(curr - goal) < Math.abs(prev - goal) ? curr : prev);
});
}
function hasClasses(el) {
if(isObj(el)) {
const classes = el.classList;
return classes.length
}
}
function wrapEl(el, wrapper) {
el.parentNode.insertBefore(wrapper, el);
wrapper.appendChild(el);
}
function wrapText(text, context, wrapper = 'mark') {
let open = `<${wrapper}>`;
let close = `</${wrapper}>`;
let escapedOpen = `%3C${wrapper}%3E`;
let escapedClose = `%3C/${wrapper}%3E`;
function wrap(context) {
let c = context.innerHTML;
let pattern = new RegExp(text, "gi");
let matches = text.length ? c.match(pattern) : null;
if(matches) {
matches.forEach(function(matchStr){
c = c.replaceAll(matchStr, `${open}${matchStr}${close}`);
context.innerHTML = c;
});
const images = elems('img', context);
if(images) {
images.forEach(image => {
image.src = image.src.replaceAll(open, '').replaceAll(close, '').replaceAll(escapedOpen, '').replaceAll(escapedClose, '');
});
}
}
}
const contents = ["h1", "h2", "h3", "h4", "h5", "h6", "p", "code", "td"];
contents.forEach(function(c){
const cs = elems(c, context);
if(cs.length) {
cs.forEach(function(cx, index){
if(cx.children.length >= 1) {
Array.from(cx.children).forEach(function(child){
wrap(child);
})
wrap(cx);
} else {
wrap(cx);
}
// sanitize urls and ids
});
}
});
const hyperLinks = elems('a');
if(hyperLinks) {
hyperLinks.forEach(function(link){
link.href = link.href.replaceAll(encodeURI(open), "").replaceAll(encodeURI(close), "");
});
}
}
function parseBoolean(string = "") {
string = string.trim().toLowerCase();
switch (string) {
case 'true':
return true;
case 'false':
return false;
default:
return undefined;
}
}
function loadSvg(icon, parent) {
parent.innerHTML = `
<svg class="icon_${icon}">
<use xlink:href="#${icon}"></use>
</svg>`;
}
function copyToClipboard(str) {
let copy, selection, selected;
copy = createEl('textarea');
copy.value = str;
copy.setAttribute('readonly', '');
copy.style.position = 'absolute';
copy.style.left = '-9999px';
selection = document.getSelection();
doc.appendChild(copy);
// check if there is any selected content
selected = selection.rangeCount > 0 ? selection.getRangeAt(0) : false;
copy.select();
document.execCommand('copy');
doc.removeChild(copy);
if (selected) { // if a selection existed before copying
selection.removeAllRanges(); // unselect existing selection
selection.addRange(selected); // restore the original selection
}
}