Parse TimeCode to Seconds

parse_timecode_seconds.js

var string = "40:01.456";

var time_array = string.split(':');
time_array = time_array.reverse();
console.log( time_array );
console.log( 'length', time_array.length );

var multiply = [1, 60, 3600];
var seconds = 0;
for( i=0; i < time_array.length;  i++) {
  console.log( time_array[i] + '*' + multiply[i]  + '+' + seconds )
  seconds = time_array[i] * multiply[i] + seconds;
  
}

console.log( seconds );