Nodejs Number Format Pad zeropad(n)

Method Source Code

Number.prototype.zeropad = function(n) {
   var str = "" + this;
   var len = n - str.length;
   var pad = "";
   while (len-- > 0) {
      pad += "0";
   }//w  w w.ja  va 2s. c  o m
   return pad + str;
};

Related

1. LenWithZero(oCount)

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

2. leadingZero(length)

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

3. leftZeroFill(number, targetLength)

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

4. 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;
   };
   ...
   

5. zeroPad(len)

   Number.prototype.zeroPad = function (len) {
     var s = String(this);
     var c = '0';
     len = len || 2;
     while (s.length < len) {
       s = c + s;
     return s;
   };
   ...
   

6. zf(len)

   Number.prototype.zf = function(len){
       if(isNaN(len)) len = 2;
       return (this + '').pad(len, '0');
   };
   

7. zfill(length)

   Number.prototype.zfill = function(length) { 
       var str = this.toString();
       if (str.length < length) {
           for(var i = 0; i < length - str.length; i++) str = '0' + str
       return str;
   };
   

8. zfill(n)

   Number.prototype.zfill = function (n) {
       var str = String(this);
       while (str.length < n) {
           str = "0" + str;
       return str;
   };