js array add after index code example

Example 1: insert into array js

// for me lol... pls don't delete!
// use splice to insert element
// arr.splice(index, numItemsToDelete, item); 
var list = ["hello", "world"]; 
list.splice( 1, 0, "bye"); 
//result
["hello", "bye", "world"]

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);