Nodejs Array Remove removeEmpty()

Method Source Code

// Copyright 2018 Joseph W. May. All Rights Reserved.
///*from   w ww  .j  av a 2 s .c  o  m*/
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.


/**
 * Returns the array with all empty, null, and undefined elements removed. This
 * does not modify the original array.
 * 
 * @returns {array} An array with no empty, null, or undefined elements.
 */
Array.prototype.removeEmpty = function() {
  var cleanArray = this.filter(function(n) {
      return (n !== undefined && n !== null && n !== '');
  });
  return cleanArray;
};

Related

1. remByVal(val)

   Array.prototype.remByVal = function (val) {
       for (var i = 0; i < this.length; i++) {
           if (this[i] === val) {
               this.splice(i, 1);
               i--;
       return this;
   };
   ...
   

2. removeByKey(index)

   Array.prototype.removeByKey = function(index) {
     var numToRemove = 1;
     return this.splice(index, numToRemove);
   };
   

3. removeElement()

   Array.prototype.removeElement = function()
       var what, a = arguments, L = a.length, ax;
       while(L && this.length){
           what= a[--L];
           while((ax= this.indexOf(what))!= -1){
               this.splice(ax, 1);
       return this;
   };
   

4. removeElementByProperty(chave,obj)

   Array.prototype.removeElementByProperty = function(chave,obj) {
       var i = this.length;
       while (i--) {
         if (angular.equals(this[i][chave], obj)) {
             this.splice(i,1);
   };
   

5. removeEmpty()

   Array.prototype.removeEmpty = function () {
     for (var i = 0; i < this.length; ++i) {
       if (this[i].replace(/^\s*$/, "") === "") {
         this.splice(i--, 1);
     return this;
   };
   

6. removeMultiple(values)

   Array.prototype.removeMultiple = function(values)
     for (var i = 0; i < values.length; i++)
       this.splice(this.indexOf(values[i]), 1);
       i--;
   

7. removeNegatives()

   Array.prototype.removeNegatives = function() {
     var negCount = 0;
     for (var index = 0; index < this.length; index++) {
       if(this[index] >= 0){
         this[index - negCount] = this[index];
       } else {
         negCount++
     this.length = this.length-negCount;
   array2 = [-1,2.4,-3.1,4,-5.0,-6];
   array2.removeNegatives();
   console.log(array2);
   

8. removeRange(start, end)

   Array.prototype.removeRange = function(start, end){
     this.splice(start, end-start);
   

9. removeSame()

   Array.prototype.removeSame = function() {
     let theNewArray = [];
     this.map((value, index, array) => {
       if (array.indexOf(value) === index) {
         theNewArray.push(value);
     });
     return theNewArray;
   };
   ...