sym3tri

angular.module('myServices')
  .factory('visibilityBroadcaster', function($rootScope, $document, _) {

  var document = $document[0],
      features,
      detectedFeature;

  features = {
    standard: {
      eventName: 'visibilitychange',

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var svg = d3.select('#container').append('svg')
.attr({
  viewBox: '0 0 1000 1000',
});

svg.append('rect')
.attr({
  width: '1000',
  height: '1000'
});

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[ Launch: An inlet to Tributary ] 4567112 by sym3tri

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[ Launch Inlet ]Gist #4513073 Gist #3200444

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// tweak these options
var lineTotal = 16,
  lineLength = 30,
  speed = 1.28,
  width = 1.96,
  radius = 16,
  color = '#333',

  // dont touch these
  posX = 100,

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// as discussed by Crockford here: http://www.youtube.com/watch?v=dkZFtimgAcM
// more detailed example here: https://github.com/douglascrockford/monad/blob/master/monad.js

function MONAD() {
  return function unit(value) {
    var monad = Object.create(null);
    monad.bind = function (func) {
      return func(value);
    };
    return monad;

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function mixin(receiver, supplier) {
  Object.keys(supplier).forEach(function(property) {
    Object.defineProperty(receiver, property, Object.getOwnPropertyDescriptor(supplier, property));
  });
}

var name = 'Ed',
supplier = {
  get name() {
    return name;

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// Every time you define a function it's as if all this happens behind the scenes...

function foo() {
    // var arguments = new array-like object corresponding to the function arguments
    // foo.length = number of parameters in function definition (different from arguments.length);
    // foo.name = 'foo';
    // foo.prototype = {};
    // foo.constructor = Function;

    //// (only if no explicit return statement exists and is not invoked with 'new' operator)

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// http://dailyjs.com/2012/11/26/js101-proto/

var assert = require('assert');

function User() {
}

var user = new User();

assert.equal(user.__proto__, User.prototype);

sym3tri

- Trailing commas are ok
- No reserved words for property names
- NaN, Infinity, undefined : are all constants
- parseInt() defaults to radix 10
- /regexp/ produces new reg ex object every time
- JSON.parse(), JSON.stringify()
- Function.prototype.bind
- String.prototype.trim
- Array.prototype.every, filter, forEach, indexOf, lastIndexOf, map, reduce, reduceRight, some, 
- Date.now()