javascript array push with index array code example
Example 1: javascript insert item into array
var colors=["red","blue"];
var index=1;
//insert "white" at index 1
colors.splice(index, 0, "white"); //colors = ["red", "white", "blue"]
Example 2: array insertion javascript
Array.prototype.insert = function ( index, item ) {
this.splice( index, 0, item );
};