Nodejs Number Format Pad pad(length)

Method Source Code

// pad a number with zeros  
Number.prototype.pad = function pad(length) {
  var str = '' + this;
  while (str.length < length) {
    str = '0' + str;
  }//  www  . j a va  2 s  . c  o m
  return str;
};

Related

1. padLeft(max, c)

   Number.prototype.padLeft = function(max, c) {
     return this.toString().padLeft(max, c || '0');
   };
   

2. padLeft(n, str)

   Number.prototype.padLeft = function(n, str) {
       return Array(n-String(this).length+1).join(str||'0')+this;
   };
   

3. padRight(max, c)

   Number.prototype.padRight = function(max, c) {
     return this.toString().padRight(max, c || '0');
   };
   

4. padWithDigits(n)

   Number.prototype.padWithDigits = function (n) {  
     var txt = this.toString();
     while(txt.length < n) {
       txt = '0' + txt;
     return txt;  
   };
   

5. padZeros(n)

   Number.prototype.padZeros = function(n){
     return this.toString().padZeros(n);
   };
   

6. LenWithZero(oCount)

   Number.prototype.LenWithZero = function(oCount) {
       var strText = this.toString();
       while (strText.length < oCount) {
           strText = '0' + strText;
       return strText;
   };
   

7. leadingZero(length)

   Number.prototype.leadingZero = function(length) {
       return ('0'+this).slice(-length);
   

8. leftZeroFill(number, targetLength)

   function leftZeroFill(number, targetLength) {
       var output = number + '';
       while (output.length < targetLength) {
           output = '0' + output;
       return output;
   

9. leftZeroPad(numZeros)

   Number.prototype.leftZeroPad = function(numZeros) {
           var n = Math.abs(this);
           var zeros = Math.max(0, numZeros - Math.floor(n).toString().length );
           var zeroString = Math.pow(10,zeros).toString().substr(1);
           if( this < 0 ) {
                   zeroString = '-' + zeroString;
           return zeroString+n;
   };
   ...