Nodejs Number Convert toApproximateTime()

Method Source Code

Number.prototype.toApproximateTime = function () {
    sec_numb    = parseInt(this);

    var approximateHours = (sec_numb / 3600).toFixedDown(1);
    var hours   = Math.floor(sec_numb / 3600);
    var minutes = Math.floor((sec_numb - (hours * 3600)) / 60);
    var seconds = sec_numb - (hours * 3600) - (minutes * 60);

   var time = '';

    if( approximateHours >= 1 ) {
       time = approximateHours + ' hours';
    }//ww w.j a  v  a2s  . c  o m
    else if( minutes > 0 ) {
       time = minutes + ' minute' + (( minutes > 1 ) ? 's' : '' );
    }
    else if( seconds > 0 ) {
       time = seconds + ' second' + (( seconds > 1 ) ? 's' : '' );
    }

    return time;
};

Related

1. toAbbr(precision)

   Number.prototype.toAbbr = function(precision) {
     if(this < 1000)
       return Math.round(this);
     else {
       var mag = Math.floor(Math.log(this) / Math.LN10 / 3);
       return (this / Math.pow(1000, mag)).toPrecision(precision || 3) + " KMBTP"[mag];
   };
   

2. toBytes()

   Number.prototype.toBytes = function () {
     if (this === 0) { return '0 bytes' }
     var i = parseInt(Math.floor(Math.log(this) / Math.log(1024)))
     var r = Math.round(this / Math.pow(1024, i) * 10) / 10
     return [r, ['bytes', 'KB', 'MB', 'GB', 'TB'][i]].join(' ')
   

3. toCents()

   Number.prototype.toCents = function(){
     return this * 100;
   };
   

4. toChar()

   Number.prototype.toChar = function() {
     return String.fromCharCode(this);
   };
   

5. toCounter()

   Number.prototype.toCounter = function () {
       var d = this;
       d = Number(d);
       var h = Math.floor(d / 1000 / 3600 );
       var m = Math.floor(d / 1000 % 3600 / 60);
       var s = Math.floor(d / 1000 % 3600 % 60);
       var ms = (d % 3600000 % 60000 % 1000);
       var tenths = Math.floor(ms / 100);
       return ((h > 0 ? h + ":" + (m < 10 ? "0" : "") : "") + m + ":" + (s < 10 ? "0" : "") + s + "." + tenths);
   ...