megawac

//http://caniuse.com/#feat=calc
//union bool str (-webkit-calc, -moz-calc, calc)
//alternatively see last version where i did a version check based on can i use
document.addEvent("domready", function() {//based off https://gist.github.com/Rob-ot/3399053
    Browser.Features.calc = false;//union bool str (-webkit-calc, -moz-calc, calc)
    ["","-webkit-","-moz-","-o-"].some(function(prefix) {
        var $el = new Element('div', {
            styles: {
                width: prefix + "calc(5px)"
            }

andreypopp

/**
 * Copyright 2013 Facebook, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software

Sumbera

/*
 UPDATE July 2016 , moved and updated to here: https://github.com/Sumbera/gLayers.Leaflet
 
 Generic  Canvas Overlay for leaflet, 
 Stanislav Sumbera, April , 2014

 - added userDrawFunc that is called when Canvas need to be redrawn
 - added few useful params fro userDrawFunc callback
  - fixed resize map bug
  inspired & portions taken from  :   https://github.com/Leaflet/Leaflet.heat

jamiebuilds

Babel Plugin Ideas

babel-plugin-backbone

import {View} from 'backbone';

export default class MyView extends View {
  initialize() {
    this.$el.css('color', 'red');