crazy4groovy
11/25/2015 - 12:55 AM

bling dot js

bling dot js

test.js
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/*
    npm install -g browser-repl
    cat bling.js test.js  | uglifyjs | pbcopy   # copy bling & tests to clipboard
    repl  # see list of browsers to try it in
    repl ie
    # paste and zoooom!
*/

var input1 = document.createElement('input')
input1.id = 'one'
document.body.appendChild(input1)

var input2 = document.createElement('input')
input2.id = 'two'
document.body.appendChild(input2)

$('input').on('click', function (e) {
  console.log('PASS!', e.target.id, ' clicked! ')
})
window.on('click', function (e) {
  console.log('Pass! window received click too!')
})

// either click 'em or this is for testing…

function simulateClick (elem) {
  var evt = document.createEvent('MouseEvents')
  evt.initMouseEvent('click', true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null)
  var canceled = !elem.dispatchEvent(evt)
}

simulateClick(input1)

setTimeout(function () { simulateClick(input2)  }, 500)
readme.md
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  • Rendered
  • Source

bling.js

Because you want the $ of jQuery without the jQuery.

You could call this a microlibrary, but really it's just some code that works.

You may be interested in this library if you get tired of the [].slice.call( document.querySelectorAll('.foo'), function(){ … rodeo.

What bling'll do for ya:

// forEach over the qSA result, directly.
document.querySelectorAll('input').forEach(function (el) {
  // …
})

// on() rather than addEventListener()
document.body.on('dblclick', function (e) {
  // …
})

// classic $ + on()
$('p').on('click', function (e) {
  // …
})

It doesn't do anything else. This is not a jQuery equivalent.

Notes:

  • on() works on elements, document, window, and results from querySelector & querySelectorAll.
  • $ is qSA so if you're grabbing a single element you'll have to [0] it.
  • Bling plays well with authoring ES6
  • Resig explored this stuff a while ago: github.com/jeresig/nodelist
  • Bling doesn't work on Android 2.3 or iOS 5.0. Works everywhere else including IE8 (assuming Function.bind)

Nerdy implementation notes:

  • The NodeList prototype usually inherits from Object, so we move it to Array.
  • I'm curious how ES6/7 would let a NodeList be iterable and inherit from EventTarget
  • Setting Node.prototype.on = EventTarget.prototype.addEventListener is awesome. It works in Chrome/FF but not yet in IE/Safari.
  • I haven't set up any off() or trigger() to map to dispatchEvent & removeEventListener. I'm OK with that.
  • I'm using semi-standard for style. I tried standard sans-semicolons, but can't get used to it.
bling.js
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/* bling.js */

window.$ = document.querySelectorAll.bind(document);

Node.prototype.on = window.on = function (name, fn) {
  this.addEventListener(name, fn);
}

NodeList.prototype.__proto__ = Array.prototype;

NodeList.prototype.on = NodeList.prototype.addEventListener = function (name, fn) {
  this.forEach(function (elem, i) {
    elem.on(name, fn);
  });
}