Nodejs Array Remove by Value removeItem(value)

Method Source Code

/**/*from  ww w .  j a  v a 2  s .co m*/
 * Write a JavaScript function removeItem(value) that accept as parameter a number or string.
 * The function should remove all elements with the given value from an array.
 * Attach the function to the Array type.
 * You may need to read about prototypes in JavaScript and how to attach methods to object types.
 * You should return as a result the modified array.
 */




Array.prototype.removeItem = function (value) {
    for(var i = this.length-1; i--;){
        if (this[i] === value) {
            this.splice(i, 1)
        }
    }
};

var arr = [1, 2, 1, 4, 1, 3, 4, 1, 111, 3, 2, 1, '1'];
arr.removeItem(1);
console.log(arr);

var arr1 = ['hi', 'bye', 'hello' ];
arr1.removeItem('bye');
console.log(arr1);

Related

1. removeItem(value)

   "use script"
   Array.prototype.removeItem = function(value) {
       if(typeof value === 'number' || typeof value === 'string') {
           for (var index in this) {
               if(this[index] === value) {
                   this.splice(index, 1);
   };
   var arr = [1, 2, 1, 4, 1, 3, 4, 1, 111, 3, 2, 1, '1'];
   arr.removeItem(1);
   console.log(arr);
   arr = ['hi', 'bye', 'hello' ];
   arr.removeItem('bye');
   console.log(arr);
   

2. removeItem(value)

   Array.prototype.removeItem = function (value) {
       var items = this.slice(0),
           newArray = [],
           i;
       for(i = 0; i < items.length; i++) {
           if(items[i] === value) {
               continue;
           newArray.push(items[i]);
   ...
   

3. removeItem(value)

   "use strict";
   Array.prototype.removeItem = function (value) {
       for (var i in this) {
           if(this[i] === value) {
               this.splice(i, 1);
   };
   var arr = ['hi', 'bye', 'hello' ];
   ...
   

4. removeItem(value)

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

5. removeItem(value)

   Array.prototype.removeItem = function (value) {
       return this.filter(function (v) {
           return v !== value;
       })
   };
   var arr = [1, 2, 1, 4, 1, 3, 4, 1, 111, 3, 2, 1, '1'];
   console.log(arr.removeItem(1));
   arr = ['hi', 'bye', 'hello' ];
   console.log(arr.removeItem('bye'));
   ...
   

6. removeValue(int)

   Array.prototype.removeValue = function(int) {
     var ans = [];
     var count = 0;
     for (i = 0; i < this.length; i++) {
       if (this[i] !== int) {
         ans.push(this[i]);
       } else if (this[i] === int) {
         count++;
     if (count === 0) {
       return false;
     return ans;
   

7. removeValue(name, value)

   Array.prototype.removeValue = function(name, value){
     try
      var array = $.map(this, function(v,i){
         return v[name] === value ? null : v;
      });
      this.length = 0; 
      this.push.apply(this, array); 
     catch(e)
       console.log(e);
   

8. removeValue(name, value)

   Array.prototype.removeValue = function(name, value) {
       var array = $.map(this, function(v, i) {
           return v[name] === value ? null : v;
       });
       this.length = 0; 
       this.push.apply(this, array); 
       return this;
   

9. removeValue(name, value)

   const DATE_FORMAT = 'Do MMM YYYY';
   const DATETIME_FORMAT = 'Do MMM YYYY LT';
   Array.prototype.removeValue = function(name, value){
      var array = $.map(this, function(v,i){
         return v[name] === value ? null : v;
      });
      this.length = 0; 
      this.push.apply(this, array);