Nodejs String Starts With startsWith(prefix)

Method Source Code

String.prototype.startsWith = function(prefix){
    return (this.lastIndexOf(prefix, 0) === 0);
};

Related

1. startsWith(prefix)

   String.prototype.startsWith = function (prefix) {
       return this.toLowerCase().indexOf(prefix.toLowerCase()) == 0;
   };
   

2. startsWith(prefix)

   String.prototype.startsWith = function (prefix){
       return this.slice(0, prefix.length) === prefix;
   };
   

3. startsWith(prefix)

   String.prototype.startsWith = String.prototype.startsWith || function (prefix){
       return this.slice(0, prefix.length) === prefix;
   };
   

4. startsWith(prefix)

   String.prototype.startsWith = function (prefix) {
     return this.substring(0, prefix.length) === prefix;
   };
   

5. startsWith(prefix)

   String.prototype.startsWith = function(prefix) {
     return this.slice(0, str.length) == str;
   };
   

6. startsWith(prefix)

   'use strict';
   var mime = require('mime');
   String.prototype.startsWith = function(prefix) {
     return this.indexOf(prefix) === 0;
   };
   String.prototype.endsWith = function(suffix) {
     return this.indexOf(suffix, this.length - suffix.length) !== -1;
   };
   

7. startsWith(prefix)

   String.prototype.startsWith = function (prefix){
     return this.slice(0, prefix.length) == prefix;
   

8. startsWith(prefix)

   String.prototype.startsWith = function(prefix)
     if(prefix == null)
       return false;
     if(this.length < prefix.length)
       return false;
     return this.substring(0, prefix.length) == prefix;
   };
   String.prototype.endsWith = function(suffix)
   ...
   

9. startsWith(prefix)

   String.prototype.startsWith = function (prefix) {
     return this.substring(0, prefix.length) == prefix;
   };