How can I add new array elements at the beginning of an array in Javascript?

Question

I have a need to add or prepend elements at the beginning of an array.

For example, if my array looks like below:

[23, 45, 12, 67]

Answer 1

Using splice we insert an element to an array at the begnning:

arrName.splice( 0, 0, 'newName1' );