Nodejs String Include includes(val, from)

Here you can find the source of includes(val, from)

Method Source Code

String.prototype.includes = function(val, from) {
    return this.indexOf(val, from) !== -1;
}

Related

  1. includes( other )
    String.prototype.includes = function( other ){
      return !!other && this.indexOf( other) != -1
    function str_includes( that, other ){
      return !!other && that.indexOf( other) != -1
    
  2. includes()
    String.prototype.includes = function () {
        'use strict';
        return String.prototype.indexOf.apply(this, arguments) !== -1;
    };
    
  3. includes(matcher)
    String.prototype.includes = function(matcher) {
      var includes = false;
      if( this.indexOf( matcher ) > 0 ) {
        includes = true;
      return includes;
    
  4. includes(string, index)
    String.prototype.includes = function (string, index) {
      if (typeof string === 'object' && string instanceof RegExp) 
         throw new TypeError("First argument to String.prototype.includes must not be a regular expression");
      return this.indexOf(string, index) !== -1;
    };
    
  5. includes(substring)
    String.prototype.includes = function(substring){
      return this.indexOf(substring) > -1 ? true : false;