How to replace a string at a particular position

Question

Is there a way to replace a portion of a String at a given position in java script. For instance I want to replace 00 in the hours column with 12 i

Answer 1

Another creative idea could be converting into Array, splice and convert it back to String.

let str = "Mar 16, 2010 00:00 AM";
let arr = str.split("");
arr.splice(13,2,"1","2");
str = arr.join("");