Nodejs String Padding Left padL(width, pad)

Method Source Code

/*//from www . ja  v  a2s.  c  om
 * Copyright (c) 2014 INSciTE.  All rights reserved
 * INSciTE is on the web at: http://www.hightechkids.org
 * This code is released under GPL; see LICENSE.txt for details.
 */

String.repeat = function(chr, count) {
   var str = "";
   for (var x = 0; x < count; x++) {
      str += chr;
   }

   return str;
};

String.prototype.padL = function(width, pad) {
   if (!width || width < 1)
      return this;

   if (!pad)
      pad = " ";
   var length = width - this.length;
   if (length < 1)
      return this.substr(0, width);

   return (String.repeat(pad, length) + this).substr(0, width);
};

Related

1. lpad(padString, length)

   String.prototype.lpad = function(padString, length) {
     var str = this;
     while(str.length < length)
       str = padString + str;
     return str;
   

2. lpad(padString, length)

   "use strict";
   String.prototype.lpad = function(padString, length) {
     let str = this;
     while (str.length < length)
       str = padString + str;
     return str;
   };
   

3. lpad(padString, length)

   String.prototype.lpad = function(padString, length) {
     var str = this;
       while (str.length < length){
           str = padString + str;
       return str;
   

4. lpad(padString, length)

   String.prototype.lpad = function(padString, length) {
     var str = this;
       while (str.length < length)
           str = padString + str;
       return str;
   

5. lpad(pad_str, length)

   String.prototype.lpad = function(pad_str, length) {
     var str = this;
     while (str.length < length) str = pad_str + str;
     return str;
   

6. padLeft( length, padding )

   Math.TO_DEGREES = 180 / Math.PI;
   Math.TO_RADIANS = Math.PI / 180;
   String.prototype.padLeft = function( length, padding )
       return Array( length - this.length + 1 ).join( padding || '0' ) + this;
   };
   

7. padLeft( pPadChar, pTotalLength )

   String.prototype.padLeft = function( pPadChar, pTotalLength )
     return ( pTotalLength <= this.length ) ? this :
       ( pPadChar + this ).padLeft(pPadChar, pTotalLength);
   };
   

8. padLeft(c, length)

   String.prototype.padLeft = function(c, length) {
       var str = this;
       while (str.length < length)
           str = c + str;
       return str;
   function formatDuration (duration) {
       var totalSeconds = Math.floor(duration);
       var minutes = Math.floor(totalSeconds / 60);
   ...
   

9. padLeft(ch, n)

   'use strict';
   String.prototype.padLeft = function(ch, n) {
     let myString = '';
     while(myString.length < n - this.length) {
       myString += ch;
     myString += this;
     return myString;
   };
   ...