Doing the Unstuck: how to make browsers compatible with Web JavaScript™

String.prototype.contains()

    // Mootools 1.2
        'a bc'.contains('bc'); //returns true
        'a b c'.contains('c', ' '); //returns true
        'a bc'.contains('b', ' '); //returns false    
    // ES6
      str.contains(searchString[, position])
    

Array.prototype.contains(), Bug 1075059

      if (!this.contains(item)) {
        this.push(item)
      }
    

Array.prototype.contains()

      Array.forEachMethod(function(method, name){
        Elements.implement(name, method);
      });
    

Array.prototype.contains()

    object.forEachMethod = function(fn){
      if (!methodsEnumerable) {
        for (var i = 0, l = methods.length; i < l; i++){
          fn.call(prototype, prototype[methods[i]], methods[i]);
        }}
      for (var key in prototype) fn.call(prototype, prototype[key], key)
    };
    

Array.prototype.contains()

    Array.implement({
    ...
        contains: function(item, from) {
          return this.indexOf(item, from) != -1;
        },
    

Array.prototype.contains()

The Array prototype object... has a length property whose initial value is 0 and whose attributes are { [[Writable]]: true, [[Enumerable]]: false, [[Configurable]]: false }.

Array.prototype.values(), 883914

            me.definitions.push('function ' + name + '(' + me.fnArgs + ') {',
              ' try { with(values) {',
              '  ' + action,
              ' }} catch(e) {',
              '}',
            '}');
        

When `values` is an Array in that WithStatement, any reference to "values" in the body statement would become `values.values`, referring to Array.prototype.values instead of the original object.

window.orientation, 920342

            if (is_iphone || android) {
            ...
              window.addEventListener(orientationEvent, function() {
                if (window.orientation != 0)
                  badOrientation();
              }}
        

    body#checkout #slide0 > p {
      color: #c5b3cb;
      background: -webkit-linear-gradient(
                        0,
                        rgba(180,180,250,0.7),
                        #fadce5 50%,#fff);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }