Nodejs String Contains contains()

Method Source Code

// Credit: MDN @ https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/contains
String.prototype.contains = function () {
   return String.prototype.indexOf.apply(this, arguments) !== -1;
};

Related

1. Contains( textToCheck )

   String.prototype.Contains = function( textToCheck )
     return ( this.indexOf( textToCheck ) > -1 ) ;
   

2. containIgnoreCase(otherStr)

   String.prototype.containIgnoreCase = function (otherStr) {
       return this.toLowerCase().indexOf(otherStr.toLowerCase());
   

3. contains( s, index)

   String.prototype.contains  = function( s, index) {
     return this.indexOf(s,index||0) > -1;
   

4. contains()

   String.prototype.contains = function() {
     var args = arguments;
     for (var i in args) {
       var str = args[i];
       if (typeof str === "string" && this.indexOf(str) > -1) {
         return true;
     return false;
   ...
   

5. contains()

   var fs = require('fs');
   var path = process.argv[2];
   var suffix = '.'+process.argv[3];
   var list =[];
   String.prototype.contains = function() {
       return String.prototype.indexOf.apply( this, arguments ) !== -1;
   };
   fs.readdir(path, function(err, files){
     if(!err){
   ...
   

6. contains(a)

   String.prototype.contains = function (a) {
     if (this.indexOf(a) > -1)
       return true;
     else
       return false;
   };
   

7. contains(argument)

   var string = "Hello world, my name is cole hudson. This is super cool.";
   String.prototype.contains = function(argument){
     var parent = this.toLowerCase();
     var argumentString = argument.toLowerCase();
     return (parent.indexOf(argumentString) > -1);
   };
   console.log(string.contains("World"));
   

8. contains(char)

   String.prototype.contains = function(char) {
       return this.indexOf(char) != -1;
   };
   

9. contains(it)

   String.prototype.contains = function(it) { return this.indexOf(it) != -1; };
   function geturlform(addr){
     if(addr.contains('http') || addr.contains('https')){
       return "<a href='"+addr+"'>"+addr+"</a>";
     }else{
       return addr;