Less-than-10 MOD formatting puzzle

Questions & Suggestions
3

If the value is < 10, then you need to Left Pad with "0".

As an alternate to using @DanThomas' great Plugin, here is a JavaScript that converts seconds to HH:MM:SS. You could easily mod to output only HH:MM.

Script: Convert Seconds to HH:MM:SS<.nnn>

Seconds can be formatted to 0 or n decimals

Requires the KM Variable "TIME__ElapsedSeconds" to be set in KM Macro before calling script. Also, a KM Variable "TIME__Decimals" can be set to the number decimals to show in the seconds (default is 0).

Example Results

08:25:07
08:25:06.63

JavaScript

'use strict';
(function () {    // Function is auto-run when script is executed
/*

---

  
Convert seconds to HH:MM:SS.nnn

---


DATE:    2016-12-02
AUTHOR: @JMichaelTX
REF:
  • Convert seconds to HH-MM-SS with JavaScript? - Stack Overflow
    • stackoverflow.com, general
  • http://stackoverflow.com/a/38467919/915019


---


*/
// --- GET DATA FROM KM VARIABLES ---

var kmeApp = Application("Keyboard Maestro Engine");

// -- DEFAULT VALUES APPEAR AFTER THE "||" --
var elapsedSeconds   = kmeApp.getvariable('TIME__ElapsedSeconds');
var decimals         = kmeApp.getvariable('TIME__Decimals') || 0;

// --- BREAKDOWN SECONS INTO HOURS, MINUTES, SECONDS ---

var hours = parseInt( elapsedSeconds / 3600 ) % 24;
var minutes = parseInt( elapsedSeconds / 60 ) % 60;
var seconds = elapsedSeconds % 60;

// --- ROUND SECONDS TO REQUIRED DECIMALS ---
seconds = round(seconds,decimals);

// --- BUILD TIME STRING, PADDED WITH "0" ---
var timeStr = (hours < 10 ? "0" + hours : hours) 
              + ":" + (minutes < 10 ? "0" + minutes : minutes) 
              + ":" + (seconds  < 10 ? "0" + seconds : seconds);

return timeStr

//~~~~~~~~~~~~~ END OF MAIN SCRIPT ~~~~~~~~~~~~~~~~~~~~~~~~~~~

// --- ROUND USING ACCURATE METHOD ---
function round(value, decimals) {
  return Number(Math.round(value+'e'+decimals)+'e-'+decimals);
}

})();