Nodejs String Ends With endsWith(searchString, position)

Method Source Code

String.prototype.endsWith = function(searchString, position) {
      var subjectString = this.toString();
      if (position === undefined || position > subjectString.length) {
        position = subjectString.length;
      }//from   ww  w  .j av  a  2  s .co m
      position -= searchString.length;
      var lastIndex = subjectString.indexOf(searchString, position);
      return lastIndex !== -1 && lastIndex === position;
  };
  
//*******************************  

var fs = require("fs");

fs.readdir(process.argv[2], function(err, files){
    for (var idx=0;idx<files.length;idx++){
        if (files[idx].endsWith("." +process.argv[3])){
            console.log(files[idx]); 
        }
    }
});

Related

1. endsWith(s)

   String.prototype.endsWith = function(s){
     var d = this.length - s.length;
     return d >= 0 && this.lastIndexOf(s) === d;
   

2. endsWith(s)

   String.prototype.endsWith=function(s)
     return this.substring(this.length-s.length)==s;
   };
   

3. endsWith(s, i)

   String.prototype.endsWith = function(s, i) {
     if(i) { return s.toLowerCase() == this.substring(this.length - s.length).toLowerCase() }
     return s == this.substring(this.length - s.length)
   };
   

4. endsWith(searchString)

   String.prototype.endsWith = function(searchString) {
   var result = true;     
      var subjectString = this.toString();
      for(var i=1;i<=searchString.length;i++){
         var lastcharsubjectString = subjectString.charAt(subjectString.length-i);
         var lastcharsearchString =searchString.charAt(searchString.length-i);
         if(lastcharsubjectString != lastcharsearchString){
            result = false;
            break;
   ...
   

5. endsWith(searchString, position)

   if (!String.prototype.endsWith) {
     String.prototype.endsWith = function(searchString, position) {
       var subjectString = this.toString();
       if (position === undefined || position > subjectString.length) {
         position = subjectString.length;
       position -= searchString.length;
       var lastIndex = subjectString.indexOf(searchString, position);
       return lastIndex !== -1 && lastIndex === position;
   ...
   

6. endsWith(searchString, position)

   String.prototype.endsWith = function(searchString, position) {
         var subjectString = this.toString();
         if (position === undefined || position > subjectString.length) {
           position = subjectString.length;
         position -= searchString.length;
         var lastIndex = subjectString.indexOf(searchString, position);
         return lastIndex !== -1 && lastIndex === position;
     };
   ...
   

7. endsWith(str)

   String.prototype.endsWith = function(str) {
       if (this.length - this.indexOf(str) === str.length) {
           return true;
       }else {
           return false;
   };
   

8. endsWith(str)

   String.prototype.endsWith = function(str)
       var lastIndex = this.lastIndexOf(str);
       return (lastIndex != -1) && (lastIndex + str.length == this.length);
   

9. endsWith(str)

   String.prototype.endsWith = function(str) 
       return this.indexOf(str, this.length - str.length) !== -1;
   };
   String.prototype.startsWith = function (str){
     return this.indexOf(str) == 0;
   };