Nodejs Array Include includes(element)

Method Source Code

Array.prototype.includes = function(element) {
  return this.indexOf(element) !== -1;
};

Related

1. include(val)

   Array.prototype.include = function(val) {
     return this.index(val) !== null;
   };
   

2. include(value)

   Array.prototype.include = function(value){
     return(this.indexOf(value) != -1);
   };
   

3. include(value)

   Array.prototype.include = function(value){
     return this.indexOf(value) !== -1;
   

4. include(x)

   Array.prototype.include = function(x){
     return this.indexOf(x) > -1
   

5. includes(array)

   Array.prototype.includes = function(array) {
     for ( var i = 0; i < this.length; i++) {
       for ( var k = 0; k < array.length; k++) {
         if ( this[i] == array[k]) {
           return true;
     return false;
   ...
   

6. includes(item)

   Array.prototype.includes = function(item) {
       return this.indexOf(item) > -1;
   

7. includes(matcher)

   Array.prototype.includes = function(matcher) {
     var includes = false
       , arr = this;
     for( var j = 0, str; str = arr[j++]; ) {
       if( typeof str === "string" && str.includes(matcher) ) {
         includes = true;
     return includes;
   ...
   

8. includes(s)

   Array.prototype.includes = function(s) {
       return this.indexOf(s) > -1;
   };
   

9. includes(searchElement /*, fromIndex*/ )

   Array.prototype.includes = Array.prototype.includes || (function(searchElement  ) {
     var O = Object(this);
     var len = parseInt(O.length, 10) || 0;
     if (len === 0) return false;
     var n = parseInt(arguments[1], 10) || 0;
     var k;
     if (n >= 0) {
       k = n;
     } else {
   ...