Nodejs Time Format toMMSS()

Method Source Code

"use strict"/*from w w w .jav  a2 s . c  om*/
Number.prototype.toMMSS = function () {
    const sec_num = parseInt(this, 10); // don't forget the second param
    let minutes = Math.floor(sec_num / 60);
    let seconds = sec_num - (minutes * 60);

    if (minutes < 10) {minutes = "0"+minutes;}
    if (seconds < 10) {seconds = "0"+seconds;}
    return minutes+':'+seconds;
}

Number.prototype.toSS = function () {
    const sec_num = parseInt(this, 10); // don't forget the second param
    let seconds = sec_num;
    if (seconds < 0) {seconds = 0;}
    if (seconds < 10) {seconds = "0"+seconds;}
    return seconds;
}

// Array shuffling prototype
Array.prototype.shuffle = function(){
    let counter = this.length, temp, index;

    // While there are elements in the array
    while (counter > 0) {
        // Pick a random index
        index = (Math.random() * counter--) | 0;

        // And swap the last element with it
        temp = this[counter];
        this[counter] = this[index];
        this[index] = temp;
    }
};

String.prototype.trunc = function(n) {
    return this.substr(0,n-1)+(this.length>n?'...':'');
};

Related

1. toHHMMSS()

   function getRandomInt(min, max) {
       min = Math.ceil(min);
       max = Math.floor(max);
       return Math.floor(Math.random() * (max - min)) + min;
   Number.prototype.toHHMMSS = function () {
       var sec_num = this;
       var hours   = Math.floor(sec_num / 3600);
       var minutes = Math.floor((sec_num - (hours * 3600)) / 60);
   ...
   

2. toHHMMSS()

   Number.prototype.toHHMMSS = function () {
       var sec_num = Math.round(this);
       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;
   ...
   

3. toHHMMSS()

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

4. toHHMMSS()

   Number.prototype.toHHMMSS = function () {
       sec_numb    = parseInt(this);
       var hours   = Math.floor(sec_numb / 3600);
       var minutes = Math.floor((sec_numb - (hours * 3600)) / 60);
       var seconds = sec_numb - (hours * 3600) - (minutes * 60);
       return ( ( hours < 10 ) ? '0' + hours : hours ) + ':' + 
           ( ( minutes < 10 ) ? '0' + minutes : minutes ) + ':' +
           ( ( seconds < 10 ) ? '0' + seconds : seconds );
   };
   ...
   

5. toHHMMSS(displayFraction)

   Number.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)
   ...
   

6. toMMSS()

   Number.prototype.toMMSS = function () {
       var minutes = Math.floor(this / 60),
         seconds = this - (minutes * 60);
       if (minutes < 10) {minutes = '0' + minutes;}
       if (seconds < 10) {seconds = '0' + seconds;}
       return minutes + ':' + seconds;
   

7. toTime()

   Object.defineProperty( Number.prototype, "toTime", {
       "get": function() {
           return function( intl ) {
               intl = intl || {};
               intl.second = intl.second || [ 's',     's' ];
               intl.minute = intl.minute || [ 'm',     'm' ];
               intl.hour   = intl.hour   || [ ' hour', ' hrs'];
               intl.day    = intl.day    || [ ' day',  ' days' ];
               intl.month  = intl.month  || [ ' month',' months' ];
   ...
   

8. toTime()

   Number.prototype.toTime = function() {
     if (this < 10) {
       return '0' + this;
     } else {
       return this + '';
   

9. toTime()

   Number.prototype.toTime = function () {
       var d = this;
       var date = new Date();
       date.setTime(d);
       var h =date.getHours();
       var m = date.getMinutes();
       var s = date.getSeconds();
       return ((h < 10 ? "0" : "") +h +  ":" + (m < 10 ? "0" : "") + m + ":" + (s < 10 ? "0" : "") + s );
   };
   ...