edgarberm

function throttle ( fn, threshhold, scope ) {
    threshhold || (threshhold = 250);
    var last,
        deferTimer;
        
    return function () {
        var context = scope || this;

        var now = +new Date,
            args = arguments;

edgarberm

if( !Object.assign ) {
    Object.assign = function( obj, items ) {
        var src = Object( items), target = Object( obj )
        Object.getOwnPropertyNames( src ).forEach( function( k ) {
            target[ k ] = src[ k ]
        })
        return target;
    }
}

edgarberm

/*
* memoize.js
* by @philogb and @addyosmani
* with further optimizations by @mathias
* and @DmitryBaranovsk
* perf tests: http://bit.ly/q3zpG3
* Released under an MIT license.
*/
function memoize( fn ) {
    return function () {

edgarberm

function isScrolledIntoView (el) {
  var elemTop = el.getBoundingClientRect().top;
  var elemBottom = el.getBoundingClientRect().bottom;

  var isVisible = (elemTop >= 0) && (elemBottom <= window.innerHeight);
  return isVisible;
}

edgarberm

const contains = (key, list) => {
  return list.indexOf(key) > -1;
}

const diff = (first, second) => {
	let firstKeys = Object.keys(first);
	let secondKeys = Object.keys(second);
	let addition = secondKeys.filter(key => !contains(key, firstKeys))
	let deletion = firstKeys.filter(key => !contains(key, secondKeys))
	return {addition, deletion}

edgarberm

const assignPrototypeMethods = ( constructorMethod, context ) => {
	// Loop over the BaseController's prototype methods and assign them to the current context
	for ( var methodName in constructorMethod.prototype ) {
		if (constructorMethod.prototype.hasOwnProperty( methodName ) && !context[ methodName ]) {
			// Copy the method into the current controller context.
			context[ methodName ] = constructorMethod.prototype[ methodName ];
		}
	}
}

edgarberm

range (num) {
  return [...Array(num).keys()]
}

edgarberm

clamp (n, min, max) {
  return Math.max(Math.min(n, max), min)
}

edgarberm

export const repeat = (str, times) => (new Array(times + 1)).join(str);

export const padStart = (num, maxLength, char = ' ') => repeat(char, maxLength - num.toString().length) + num;

export const formatTime = (time) => {
    const h = padStart(time.getHours(), 2, '0');
    const m = padStart(time.getMinutes(), 2, '0');
    const s = padStart(time.getSeconds(), 2, '0');
    const ms = padStart(time.getMilliseconds(), 3, '0');
    return `${h}:${m}:${s}.${ms}`;

edgarberm

const roman = (n) => {
  n = String(Math.floor(Math.abs(n)))
  let element, i, result = ''
  const table = [
    ['', 'I', 'II', 'III', 'IV', 'V', 'VI', 'VII', 'VIII', 'IX'],
    ['', 'X', 'XX', 'XXX', 'XL', 'L', 'LX', 'LXX', 'LXXX', 'XC'],
    ['', 'C', 'CC', 'CCC', 'CD', 'D', 'DC', 'DCC', 'DCCC', 'CM']
  ]
      
  for (i = 0; i < table.length; i += 1) {