Nodejs Number Format Pad padLeft(base, chr)

Method Source Code

/*//from  w  ww . j  a v a2 s .  co m
* This file is used to override/increment the default prototypes to provide global helper functions
*/

//used for date formatting, add 0s to the left
Number.prototype.padLeft = function (base, chr) {
    var len = (String(base || 10).length - String(this).length) + 1;
    return len > 0 ? new Array (len).join(chr || '0') + this : this;
};

//compare the equalness of 2 arrays
Array.prototype.compare = function (array) {
    // if the other array is a falsy value, return
    if (!array)
        return false;

    // compare lengths - can save a lot of time
    if (this.length != array.length)
        return false;

    for (var i = 0; i < this.length; i++) {
        // Check if we have nested arrays
        if (this[i] instanceof Array && array[i] instanceof Array) {
            // recurse into the nested arrays
            if (!this[i].compare(array[i]))
                return false;
        } else if (this[i] != array[i]) {
            // Warning - two different object instances will never be equal: {x:20} != {x:20}
            return false;
        }
    }
    return true;
};

Related

1. pad(size)

   Number.prototype.pad = function(size) {
     var s = String(this);
     while (s.length < (size || 2)) {
       s = "0" + s;
     return s;
   

2. pad(size)

   'use strict';
   Number.prototype.pad = function(size) {
     if(typeof(size) !== "number"){size = 2;}
     var s = String(this);
     while (s.length < size) s = "0" + s;
     return s;
   

3. pad(size)

   Number.prototype.pad = function(size) {
     var s = String(this);
     if (typeof(size) !== "number") {
       size = 2;
     while (s.length < size) {
       s = "0" + s;
     return s;
   ...
   

4. pad(size, decimalSize, decimalChar)

   Number.prototype.pad = function (size, decimalSize, decimalChar) {
       if (!decimalChar) decimalChar = '.';
       var str = this.toString();
       str = str.split(".");
       var result = str[0].pad("0", size ? size : 0);
       if (str.length==2){
           result += decimalChar + str[1].pad("0", decimalSize, true);
       return result;
   ...
   

5. padLeft(base, chr)

   Number.prototype.padLeft = function (base, chr) {
       var len = (String(base || 10).length - String(this).length) + 1;
       return len > 0 ? new Array(len).join(chr || '0') + this : this;
   function formatDate(d) {
       return [(d.getFullYear()).padLeft(),
               (d.getMonth() + 1).padLeft(),
               d.getDate().padLeft()].join('-') +
           ' ' +
   ...
   

6. padLeft(base, chr)

   Number.prototype.padLeft = function (base, chr) {
       var len = (String(base || 10).length - String(this).length) + 1;
       return len > 0 ? new Array(len).join(chr || '0') + this : this;
   };
   

7. padLeft(base,chr)

   Number.prototype.padLeft = function(base,chr) {
     var len = (String(base || 10).length - String(this).length)+1;
     return len > 0? new Array(len).join(chr || '0')+this : this;
   };
   

8. padLeft(max, c)

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

9. padLeft(n, str)

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