how to push a new object in specfic index in an araay of object in js code example

Example 1: array insertion javascript

Array.prototype.insert = function ( index, item ) {
    this.splice( index, 0, item );
};

Example 2: how to insert a value into an array javascript

var list = ["foo", "bar"];


list.push("baz");


["foo", "bar", "baz"] // result