rijkvanzanten

function isEqual(obj1, obj2) {
  const props1 = Object.getOwnPropertyNames(obj1);
  const props2 = Object.getOwnPropertyNames(obj2);
  if(props1.length != props2.length) {
    return false;
  }

  for(let i = 0; i < props1.length; i++) {
    const propName = props1[i];
    if(obj1[propName] !== obj2[propName]) {

rijkvanzanten

const createSocketMiddleware = function(socket, {eventName = 'action'} = {}) {
  return ({dispatch}) => {
    socket.on(eventName, dispatch);

    return (next) => (action) => {
      if(action.hasOwnProperty('server')) socket.emit(eventName, action);
      return next(action);
    };
  };
};

rijkvanzanten

const required = function(paramName) {
  throw new Error(`${paramName} is required`);
};

const foo = function((param1 = required('param1')), param2) {
  // ...
};

foo(); // Error: param1 is required

rijkvanzanten

['jan', 'feb', 'maa', 'apr', 'mei', 'jun', 'jul', 'aug', 'sep', 'okt', 'nov', 'dec'];

rijkvanzanten

function formatPrice(price, currency = 'USD', locale = 'en-US') {
  const options = { style: 'currency', currency };
  const singles = price / 100;
  
  if(singles % 1 === 0) options.maximumSignificantDigits = 0;
  return singles.toLocaleString(locale, options);
}

rijkvanzanten

# .bash_profile / .zshrc
# make sure the php version is the version selected in MAMP
export MAMP_PHP=/Applications/MAMP/bin/php/php5.6.10/bin
export PATH="$MAMP_PHP:$PATH"

rijkvanzanten

const keyCodeMap = {
    48: '0', 49: '1', 50: '2', 51: '3', 52: '4', 53: '5', 54: '6', 55: '7', 56: '8', 57: '9', 59: ';',
    65: 'a', 66: 'b', 67: 'c', 68: 'd', 69: 'e', 70: 'f', 71: 'g', 72: 'h', 73: 'i', 74: 'j', 75: 'k', 76: 'l',
    77: 'm', 78: 'n', 79: 'o', 80: 'p', 81: 'q', 82: 'r', 83: 's', 84: 't', 85: 'u', 86: 'v', 87: 'w', 88: 'x', 89: 'y', 90: 'z',
    96: '0', 97: '1', 98: '2', 99: '3', 100: '4', 101: '5', 102: '6', 103: '7', 104: '8', 105: '9'
};

// Usage: keyCodeMap[65] === 'a';

rijkvanzanten

 /**
   * Convert value from one range to another
   * @param {Number} value value to convert
   * @param {Object} oldRange min, max of values range
   * @param {Object} newRange min, max of desired range
   * @return {Number} value converted to other range
   */
  function convertRange(value, oldRange, newRange) {
    return ((value - oldRange.min) * (newRange.max - newRange.min)) / (oldRange.max - oldRange.min) + newRange.min;
  }

rijkvanzanten

function validateTextColor(color) {
  var cssColorsArray = ['AliceBlue', 'AntiqueWhite', 'Aqua', 'Aquamarine', 'Azure', 'Beige', 'Bisque', 'Black', 'BlanchedAlmond', 'Blue', 'BlueViolet', 'Brown', 'BurlyWood', 'CadetBlue', 'Chartreuse', 'Chocolate', 'Coral', 'CornflowerBlue', 'Cornsilk', 'Crimson', 'Cyan', 'DarkBlue', 'DarkCyan', 'DarkGoldenRod', 'DarkGray', 'DarkGrey', 'DarkGreen', 'DarkKhaki', 'DarkMagenta', 'DarkOliveGreen', 'Darkorange', 'DarkOrchid', 'DarkRed', 'DarkSalmon', 'DarkSeaGreen', 'DarkSlateBlue', 'DarkSlateGray', 'DarkSlateGrey', 'DarkTurquoise', 'DarkViolet', 'DeepPink', 'DeepSkyBlue', 'DimGray', 'DimGrey', 'DodgerBlue', 'FireBrick', 'FloralWhite', 'ForestGreen', 'Fuchsia', 'Gainsboro', 'GhostWhite', 'Gold', 'GoldenRod', 'Gray', 'Grey', 'Green', 'GreenYellow', 'HoneyDew', 'HotPink', 'IndianRed', 'Indigo', 'Ivory', 'Khaki', 'Lavender', 'LavenderBlush', 'LawnGreen', 'LemonChiffon', 'LightBlue', 'LightCoral', 'LightCyan', 'LightGoldenRodYellow', 'LightGray', 'LightGrey', 'LightGreen', 'LightPink

rijkvanzanten

  /**
   * Validates hex value
   * @param  {String} color hex color value
   * @return {Boolean}
   */
  function isValidHex(color) {
    if(!color || typeof color !== 'string') return false;

    // Validate hex values
    if(color.substring(0, 1) === '#') color = color.substring(1);