Nodejs Array Value pad(minSize, val)

Method Source Code

Array.prototype.pad = function(minSize, val) {
    var padded = new Array();
    for (var i = 0; i < this.length; i++) {
        padded.push(this[i]);// w  w w.j  a  v  a 2  s  .  co m
    }
    while (padded.length < minSize) {
        padded.push(val || null);
    }
    return padded;
}

Related

1. hasWhere(property, value)

   Array.prototype.hasWhere = function (property, value) {
       "use strict";
       for(var i = 0; i < this.length; i++) {
           if(this[i][property] === value) {
               return true;
       return false;
   };
   ...
   

2. iReduce(handler, initialValue)

   var ary = [0,1,2,3,4,5,6,7,8,9];
   var initialValue;
   Array.prototype.iReduce = function(handler, initialValue) {
     if (typeof handler !== 'function') {
       throw new Error(handler + 'is not a function!');
     var ary = this;
     var i = 0;
     var tempCurrent = initialValue;
   ...
   

3. makeArray(value){

   Array.makeArray = function(value){
     if ( !value ) return [];
     if ( typeof value == "string" ) return [value];
     return Array.prototype.slice.call(value, 0);
   };
   

4. nIndexOf(value)

   Array.prototype.nIndexOf = function(value){
       var firstIndex = 0,
           lastIndex = this.length - 1,
           middleIndex = Math.floor((lastIndex + firstIndex) / 2);
       while (this[middleIndex] != value && firstIndex < lastIndex) {
           if (value < this[middleIndex]) {
               lastIndex = middleIndex - 1;
           } else if (value > this[middleIndex]) {
               firstIndex = middleIndex + 1;
   ...
   

5. oneValue()

   Array.prototype.oneValue = function()
       var max = this[0];
       for(el in this)
           if(this[el] !== max && !isNaN(this[el]))
               return false;
       return true;
   };
   

6. plumRemove(elemVal)

   Array.prototype.plumRemove = function(elemVal){
     var i = this.indexOf(elemVal);
     if(i>-1){
       this.splice(i, 1);
   };
   

7. query(field, operator, value)

   Array.prototype.query = function (field, operator, value) { 
       if (operator=="contains"){
           value = value.toLowerCase();
         return this.filter(function (item){
          return item[field].toLowerCase().indexOf(value) !== -1;   
       });
     else if(operator == "==") {
       return this.filter(function (item){
   ...
   

8. resize(newSize, defaultValue = 0)

   Array.prototype.resize = Array.prototype.resize || function(newSize, defaultValue = 0) {
       while (newSize > this.length) {
           this.push(defaultValue);
       this.length = newSize;
   };
   

9. resizeMatrix(rowsSize, columnsSize, defaultValue = 0)

   Array.prototype.resizeMatrix = Array.prototype.resizeMatrix || function(rowsSize, columnsSize, defaultValue = 0) {
       while (rowsSize > this.length) {
           var row = [];
           row.resize(columnsSize, defaultValue);
           this.push(row);
       this.length = rowsSize;
   };