push array element on particular position code example

Example 1: javascript push in position

var arr = [];
arr[0] = "Jani";
arr[1] = "Hege";
arr[2] = "Stale";
arr[3] = "Kai Jim";
arr[4] = "Borge";

console.log(arr.join());
arr.splice(2, 0, "Lene");
console.log(arr.join());

Example 2: add an object to index 0 array js

//Add an object to start of array
splice(index,noOfItemstoDelete,item);
ex - arr.splice(0,0,item);