JSFiddle - React, Tailwind, and code Playground

JavaScript

var str = "12:13,94:13:14,9:";

var split = str.replace(/,/g, '.').split(':').map(Number);

var Carray = [];

for(int i=0 ; i<split.length ; i+2)
{
	var temp = [split[i], split[i+1]];
  
  Carray.push(temp);

}

document.write(Carray);