1var colors=["red","blue"];
2var index=1;
3
4//insert "white" at index 1
5colors.splice(index, 0, "white"); //colors = ["red", "white", "blue"]
6
1var arr = [];
2arr[0] = "Jani";
3arr[1] = "Hege";
4arr[2] = "Stale";
5arr[3] = "Kai Jim";
6arr[4] = "Borge";
7
8console.log(arr.join());
9arr.splice(2, 0, "Lene");
10console.log(arr.join());