Tiny jQuery alternative for plain Javascript with inline Locality of Behavior!
(Art by shahabalizadeh)
For devs who love ergonomics! You may appreciate Surreal if:
- You want to stay as close as possible to Vanilla JS.
- Hate typing
document.querySelectorover.. and over.. - Hate typing
addEventListenerover.. and over.. - Really wish
document.querySelectorAllhad Array functions.. - Really wish
thiswould work in any inline<script>tag - Enjoyed using jQuery selector syntax.
- Animations, timelines, tweens with no extra libraries.
- Only 320 lines. No build step. No dependencies.
- Pairs well with htmx
- Want fewer layers, less complexity. Are aware of the cargo cult.
βοΈ
- β‘οΈ Locality of Behavior (LoB) Use
me()inside<script>- No .class or #id needed! Get an element without creating a unique name.
thisbut much more flexible!- Want
mein your CSS<style>tags, too? See our companion script
- π Call chaining, jQuery style.
- β»οΈ Functions work seamlessly on 1 element or arrays of elements!
- All functions can use:
me(),any(),NodeList,HTMLElement(..or arrays of these!) - Get 1 element:
me() - ..or many elements:
any() me()orany()can chain with any Surreal function.me()can be used directly as a single element (likequerySelector()or$())any()can use:for/forEach/filter/map(likequerySelectorAll()or$())
- All functions can use:
- π No forced style. Use:
classAddorclass_addoraddClassoradd_class- Use
camelCase(Javascript) orsnake_case(Python, Rust, PHP, Ruby, SQL, CSS).
- Use
- π‘ Solves the classic jQuery bloat problem: Am I getting 1 element or an array of elements?
me()is guaranteed to return 1 element (or first found, or null).any()is guaranteed to return an array (or empty array).- No more checks = write less code. Bonus: Reads more like self-documenting english.
Do surreal things with Locality of Behavior like:
<label for="file-input" >
<div class="uploader"></div>
<script>
me().on("dragover", ev => { halt(ev); me(ev).classAdd('.hover'); console.log("Files in drop zone.") })
me().on("dragleave", ev => { halt(ev); me(ev).classRemove('.hover'); console.log("Files left drop zone.") })
me().on("drop", ev => { halt(ev); me(ev).classRemove('.hover').classAdd('.loading'); me('#file-input').attribute('files', ev.dataTransfer.files); me('#form').send('change') })
</script>
</label>See the Live Example! Then view source.
Surreal is only 320 lines. No build step. No dependencies.
π₯ Download into your project, and add <script src="/surreal.js"></script> in your <head>
Or, π via CDN: <script src="https://cdn.jsdelivr.net/gh/gnat/surreal@main/surreal.js"></script>
- Select one element:
me(...)- Can be any of:
- CSS selector:
".button","#header","h1","body > .block" - Variables:
body,e,some_element - Events:
event.currentTargetwill be used. - Surreal selectors:
me(),any() - Choose the start location in the DOM with the 2nd arg. (Default:
document)any('button', me('#header')).classAdd('red')- Add
.redto any<button>inside of#header
- Add
- CSS selector:
me()β Get parent element of<script>without a .class or #id !me("body")Gets<body>me(".button")Gets the first<div class="button">...</div>. To get all of them useany()
- Can be any of:
- Select one or more elements as an array:
any(...)- Like
me()but guaranteed to return an array (or empty array). any(".foo")β Get all matching elements.- Convert between arrays of elements and single elements:
any(me()),me(any(".something"))
- Like
- β»οΈ All functions work on single elements or arrays of elements.
- π Start a chain using
me()andany()- π’ Style A:
me().classAdd('red')β Recommended! Chain style. - π΅ Style B:
classAdd(me(), 'red')
- π’ Style A:
- π Global conveniences help you write less code.
globalsAdd()will automatically warn you of any clobbering issues.- If you do not want global conveniences, delete
globalsAdd()- π Style C:
surreal.me().classAdd('red') - π‘ Style D:
surreal.classAdd(surreal.me(), 'red')
- π Style C:
See: Quick Start and Reference and No Surreal Needed
- Add a class
me().classAdd('red')any("button").classAdd('red')
- Events
me().on("click", ev => me(ev).fadeOut() )any('button').on('click', ev => { me(ev).styles('color: red') })
- Run functions over elements.
any('button').run(_ => { alert(_) })
- Styles / CSS
me().styles('color: red')me().styles({ 'color':'red', 'background':'blue' })
- Attributes
me().attribute('active', true)
<div>I change color every second.
<script>
// On click, animate something new every second.
me().on("click", async ev => {
let el = me(ev) // Save target because async will lose it.
me(el).styles({ "transition": "background 1s" })
await sleep(1000)
me(el).styles({ "background": "red" })
await sleep(1000)
me(el).styles({ "background": "green" })
await sleep(1000)
me(el).styles({ "background": "blue" })
await sleep(1000)
me(el).styles({ "background": "none" })
await sleep(1000)
me(el).remove()
})
</script>
</div><div>I fade out and remove myself.
<script>me().on("click", ev => { me(ev).fadeOut() })</script>
</div><div>Change color every second.
<script>
// Run immediately.
(async (e = me()) => {
me(e).styles({ "transition": "background 1s" })
await sleep(1000)
me(e).styles({ "background": "red" })
await sleep(1000)
me(e).styles({ "background": "green" })
await sleep(1000)
me(e).styles({ "background": "blue" })
await sleep(1000)
me(e).styles({ "background": "none" })
await sleep(1000)
me(e).remove()
})()
</script>
</div><script>
// Run immediately, for every <button> globally!
(async () => {
any("button").fadeOut()
})()
</script>any('button')?.forEach(...)
any('button')?.map(...)Looking for DOM Selectors? Looking for stuff we recommend doing in vanilla JS?
- π Chainable off
me()andany() - π Global
- π Alias
- π Built-in Plugin
- π
run- It's
forEachbut less wordy and works on single elements, too! me().run(e => { alert(e) })any('button').run(e => { alert(e) })
- It's
- π
removeme().remove()any('button').remove()
- π
classAddπclass_addπaddClassπadd_classme().classAdd('active')- Leading
.is optional- Same thing:
me().classAdd('active')πme().classAdd('.active')
- Same thing:
- π
classRemoveπclass_removeπremoveClassπremove_classme().classRemove('active')
- π
classToggleπclass_toggleπtoggleClassπtoggle_classme().classToggle('active')
- π
stylesme().styles('color: red')Add style.me().styles({ 'color':'red', 'background':'blue' })Add multiple styles.me().styles({ 'background':null })Remove style.
- π
attributeπattributesπattr- Get:
me().attribute('data-x')- For single elements.
- For many elements, wrap it in:
any(...).run(...)orany(...).forEach(...)
- Set:
me().attribute('data-x', true) - Set multiple:
me().attribute({ 'data-x':'yes', 'data-y':'no' }) - Remove:
me().attribute('data-x', null) - Remove multiple:
me().attribute({ 'data-x': null, 'data-y':null })
- Get:
- π
sendπtriggerme().send('change')me().send('change', {'data':'thing'})- Wraps
dispatchEvent
- π
onme().on('click', ev => { me(ev).styles('background', 'red') })- Wraps
addEventListener
- π
offme().off('click', fn)- Wraps
removeEventListener
- π
offAllme().offAll()
- π
disableme().disable()- Easy alternative to
off(). Disables click, key, submit events.
- π
enableme().enable()- Opposite of
disable()
- π
createElementπcreate_elemente_new = createElement("div"); me().prepend(e_new)- Alias of document.createElement
- π
sleepawait sleep(1000, ev => { alert(ev) })asyncversion ofsetTimeout- Wonderful for animation timelines.
- π
halthalt(event)- When recieving an event, stop propagation, and prevent default actions (such as form submit).
- Wrapper for stopPropagation and preventDefault
- π
tickawait tick()awaitversion ofrAF/requestAnimationFrame.- Waits for 1 frame (browser paint).
- Useful to guarantee CSS properties are applied, and events have propagated.
- π
rAFrAF(e => { return e })- Calls after 1 frame (browser paint). Alias of requestAnimationFrame
- Useful to guarantee CSS properties are applied, and events have propagated.
- π
rICrIC(e => { return e })- Calls when Javascript is idle. Alias of requestIdleCallback
- π
onloadAddπonload_addπaddOnloadπadd_onloadonloadAdd(_ => { alert("loaded!"); })<script>let e = me(); onloadAdd(_ => { me(e).on("click", ev => { alert("clicked") }) })</script>- Execute after the DOM is ready. Similar to jquery
ready() - Add to
window.onloadwhile preventing overwrites ofwindow.onloadand predictable loading! - Alternatives:
- Skip missing elements using
?.example:me("video")?.requestFullscreen() - Place
<script>after the loaded element.- See
me('-')/me('prev')
- See
- Skip missing elements using
- π
fadeOut- See below
- π
fadeIn- See below
Build effects with me().styles({...}) with timelines using CSS transitioned await or callbacks.
Common effects included:
-
π
fadeOutπfade_out- Fade out and remove element.
- Keep element with
remove=false. me().fadeOut()me().fadeOut(ev => { alert("Faded out!") }, 3000)Over 3 seconds then call function.
-
π
fadeInπfade_in- Fade in existing element which has
opacity: 0 me().fadeIn()me().fadeIn(ev => { alert("Faded in!") }, 3000)Over 3 seconds then call function.
- Fade in existing element which has
More often than not, Vanilla JS is the easiest way!
Logging
console.log()console.warn()console.error()- Event logging:
monitorEvents(me())See: Chrome Blog
Benchmarking / Time It!
console.time('name')console.timeEnd('name')
Text / HTML Content
me().textContent = "hello world"- XSS Safe! See: MDN
me().innerHTML = "<p>hello world</p>"me().innerText = "hello world"
Children
me().childrenme().children.hidden = true
Append / Prepend elements.
me().prepend(new_element)me().appendChild(new_element)me().insertBefore(element, other_element.firstChild)me().insertAdjacentHTML("beforebegin", new_element)
- Lightest, vanilla javascript: fetch() or XMLHttpRequest() (see examples below).
- Or, alternatives, light: fixi or htmx or htmz or triptych. Heavy: turbo or unpoly
- Example using
fetch()
me().on("click", async event => {
let e = me(event)
// EXAMPLE 1: Hit /thing endpoint.
if((await fetch("/thing")).ok) console.log("Got thing.")
// EXAMPLE 2: Get /thing endpoint and replace me()
try {
let response = await fetch('/thing')
if (response.ok) e.innerHTML = await response.text()
else console.warn('fetch(): Bad response')
}
catch (error) { console.warn(`fetch(): ${error}`) }
})- Example using
XMLHttpRequest()
me().on("click", event => {
let e = me(event)
// EXAMPLE 1: Hit /thing endpoint.
var xhr = new XMLHttpRequest()
xhr.open("GET", "/thing")
xhr.send()
// EXAMPLE 2: Get /thing endpoint and replace me()
var xhr = new XMLHttpRequest()
xhr.open("GET", "/thing")
xhr.onreadystatechange = () => {
if (xhr.readyState == 4 && xhr.status >= 200 && xhr.status < 300) e.innerHTML = xhr.responseText
}
xhr.send()
})- Many ideas can be done in HTML / CSS (ex: dropdowns)
_= for temporary or unused variables. Keep it short and sweet!e,el,elt= elemente,ev,evt= eventf,fn= function
- β Scope with block
{...}{ let note = "hi"; function hey(text) { alert(text) }; me().on('click', ev => { hey(note) }) }letandfunctionare scoped within{ }
- β Scope with
me()blockme().hey = (text) => { alert(text) }me().on('click', (ev) => { me(ev).hey("hi") })
- β Scope with event block
me().on('click', event => { /* ... */ })
- Scope with inline module
<script type="module">- Warning:
me()will not seeparentElement. Explicit selector required:me(".mybutton")
- Use:
me('-')orme('prev')orme('previous')<input type="text" /> <script>me('-').value = "hello"</script>- Inspired by the CSS "next sibling" combinator
+but in reverse-
- Or, use a relative start.
<form> <input type="text" n1 /> <script>me('[n1]', me()).value = "hello"</script> </form>
me("#i_dont_exist")?.classAdd('active')- Silent warnings:
me("#i_dont_exist", document, false)?.classAdd('active')
Feel free to edit Surreal directly- but if you prefer, you can use plugins to effortlessly merge with new versions.
function pluginHello(e) {
function hello(e, name="World") {
console.log(`Hello ${name} from ${e}`)
return e // Make chainable.
}
// Add sugar
e.hello = (name) => { return hello(e, name) }
}
surreal.plugins.push(pluginHello)Now use your function like: me().hello("Internet")
- See the included
pluginEffectsfor a more comprehensive example. - Your functions are added globally by
globalsAdd()If you do not want this, add it to therestrictedlist. - Refer to an existing function to see how to make yours work with 1 or many elements.
Make an issue or pull request if you think people would like to use it! If it's useful enough we'll want it in core.
- New automated official NPM (https://www.npmjs.com/package/@geenat/surreal)
- New automated test system.
- This repo is actually smaller now because the github-only automations generate their own support files for testing and publishing.
- Fixed warning about
document.plugins#52
- jQuery for the chainable syntax we all love.
- Hyperscript for Locality of Behavior and ergonomics.
- BlingBling.js for modern minimalism.
- Bliss.js for a focus on single elements and extensibility.
- Shout out to Umbrella, Cash, Zepto