Quickly create an array of classes

To create a new object: function Createlikearray () {}; var New // {}

This is just an empty object, how to convert an object into an array of classes??

[1, 2, 3, 4] = = [0=>1, 1=>2, 2=>3, 3=>4] + = {' 0 ': 1, ' 1 ': 2, ' 2 ': ' 3 ', ' 3 ': ' 4 '};

Three steps are listed above:

function Createlikearray (arr) {    thisfunction(array) {    var  This ;    Array.foreach (function(V, i) {           = v;    });}

This output is still an object, unlike an array;

So what happens next?

function Createlikearray (arr) {    this. Addkeys (arr);} var protos = Createlikearray.prototype ==function(array) {      varthis;    Array.foreach (function(v) {        _this.push (v);    });

ok! to my requirements, the data structure looks like an array, and has its own prototype, as well as an array of property methods;

Createlikearray: constructor function;

The Addkeys method actually turns the array into an object, which is not like an array;

Plus the prototype is an empty array, and it inherits all the methods of the array's prototype; this looks like an array;

In the following can continue to add properties and methods to Protos, expand the Createlikearray prototype;

When studying the jquery source code, see how jquery is implemented:

Finds the DOM, returns the array form, and then iterates over the array into {0: ', 1: ', Length:2,...};

Finally add the slice, splice method to the prototype, looking like an array

Quickly create an array of classes