Nodejs String to Time Format toHHMMSS()

Method Source Code

String.prototype.toHHMMSS = function () {
    var sec_num = parseInt(this, 10); // don't forget the second param
    var hours   = Math.floor(sec_num / 3600);
    var minutes = Math.floor((sec_num - (hours * 3600)) / 60);
    var seconds = sec_num - (hours * 3600) - (minutes * 60);

    if (hours   < 10) {hours   = "0"+hours;}
    if (minutes < 10) {minutes = "0"+minutes;}
    if (seconds < 10) {seconds = "0"+seconds;}
    var time    = hours+':'+minutes+':'+seconds;
    return time;// www.j a  v  a 2  s.  co  m
};

function Interval(fn, time) {
    var timer = false;
    var whenStarts = null;
    this.start = function () {
        if (!this.isRunning()) {
            whenStarts = new Date();
            timer = setInterval(function() {
                var secs = Math.round((new Date() - whenStarts) / 1000);
                fn(secs);
            }, time);
        }
    };
    this.stop = function () {
        clearInterval(timer);
        timer = false;
    };
    this.isRunning = function () {
        return timer !== false;
    };
};

Related

1. toHHMMSS()

   String.prototype.toHHMMSS = function () {
     let sec_num = parseInt(this, 10); 
     let hours = Math.floor(sec_num / 3600);
     let minutes = Math.floor((sec_num - (hours * 3600)) / 60);
     let seconds = sec_num - (hours * 3600) - (minutes * 60);
     if (hours < 10) {
       hours = '0'+hours;
     if (minutes < 10) {
   ...
   

2. toHHMMSS()

   String.prototype.toHHMMSS = function() {
     var sec_num = parseInt(this, 10); 
     var hours = Math.floor(sec_num / 3600);
     var minutes = Math.floor((sec_num - (hours * 3600)) / 60);
     var seconds = sec_num - (hours * 3600) - (minutes * 60);
     if(hours < 10) {
       hours = '0' + hours;
     if(minutes < 10) {
   ...
   

3. toHHMMSS()

   String.prototype.toHHMMSS = function () {
     var mills = this.match("\\.\\d{1,3}");
     var sec_num = parseInt(this, 10); 
     var hours   = Math.floor(sec_num / 3600);
     var minutes = Math.floor((sec_num - (hours * 3600)) / 60);
     var seconds = sec_num - (hours * 3600) - (minutes * 60);
     if (hours   < 10) {hours   = "0"+hours;}
     if (minutes < 10) {minutes = "0"+minutes;}
     if (seconds < 10) {seconds = "0"+seconds;}
   ...
   

4. toHHMMSS()

   String.prototype.toHHMMSS = function() {
     var sec_num = parseInt(this / 1000, 10);
     var hours = Math.floor(sec_num / 3600);
     var minutes = Math.floor((sec_num - (hours * 3600)) / 60);
     var seconds = sec_num - (hours * 3600) - (minutes * 60);
     if (hours < 10)
       hours = "0" + hours;
     if (minutes < 10)
       minutes = "0" + minutes;
   ...
   

5. toHHMMSS()

   String.prototype.toHHMMSS = function () {
       var sec_num = parseInt(this, 10); 
       var hours   = Math.floor(sec_num / 3600);
       var minutes = Math.floor((sec_num - (hours * 3600)) / 60);
       var seconds = sec_num - (hours * 3600) - (minutes * 60);
       if (hours   < 10) {hours   = "0"+hours;}
       if (minutes < 10) {minutes = "0"+minutes;}
       if (seconds < 10) {seconds = "0"+seconds;}
       var time;
   ...
   

6. toHHMMSS()

   String.prototype.toHHMMSS = function () {
       var sec_num = parseInt(this, 10); 
       var hours   = Math.floor(sec_num / 3600);
       var minutes = Math.floor((sec_num - (hours * 3600)) / 60);
       var seconds = sec_num - (hours * 3600) - (minutes * 60);
       if (hours   < 10) {hours   = "0"+hours;}
       if (minutes < 10) {minutes = "0"+minutes;}
       if (seconds < 10) {seconds = "0"+seconds;}
       return hours + ':'+ minutes+':'+seconds;
   ...
   

7. toHHMMSS()

   String.prototype.toHHMMSS = function() {
     var sec_num = parseInt(this,10);
     var hours = Math.floor(sec_num/3600);
     var minutes = Math.floor( (sec_num - (hours*3600)) / 60 );
     var seconds = sec_num - (hours*3600) - (minutes*60);
     if (hours < 10 ) {
       hours = "0"+hours;
     if (minutes < 10) {
   ...
   

8. toHHMMSS(displayFraction)

   String.prototype.toHHMMSS = function (displayFraction) {
       var fraction = '';
       if (displayFraction === undefined) {
           displayFraction = false;
       var sec_num = parseInt(this, 10);
       if (displayFraction) {
           var fractionPart = this - sec_num;
           fraction = '.' + Math.ceil(((fractionPart < 1.0) ? fractionPart : (fractionPart % Math.floor(fractionPart))) * 1000)
   ...
   

9. toHHMMSS(hiddenHours)

   String.prototype.toHHMMSS = function (hiddenHours) {
       var sec_num = parseInt(this, 10); 
       var hours   = Math.floor(sec_num / 3600);
       var minutes = Math.floor((sec_num - (hours * 3600)) / 60);
       var seconds = sec_num - (hours * 3600) - (minutes * 60);
       if (hours   < 10) {hours   = "0"+hours;}
       if (minutes < 10) {minutes = "0"+minutes;}
       if (seconds < 10) {seconds = "0"+seconds;}
       var time = hours+':'+minutes+':'+seconds;
   ...