Nodejs String Starts With startsWithstartsWith(prefix)

Method Source Code

/**/*w w w .  j  av  a2s . com*/
 * Tests if this string starts with the specified prefix.
 *
 * @param {String} prefix The prefix.
 * @return {boolean} true if this string starts with the specified prefix; false otherwise.
 */
String.prototype.startsWith = function startsWith(prefix) {
   return this.indexOf(prefix) === 0;
};

Related

1. startsWith(value)

   String.prototype.startsWith = function (value) {
       "use strict";
       var length = this.substring(0, value.length),
           startsWith = false;
       if (length === value && value !== "" && value !== 'undefined') {
           startsWith = true;
       return startsWith;
   };
   ...
   

2. startsWith(x)

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

3. startsWithAny(strings)

   String.prototype.startsWithAny = function(strings){
       for (var i = 0; i < strings.length; i++)
           if (this.startsWith(strings[i]))
               return true;
       return false;
   String.prototype.startsWith = function(str){
       return (this.indexOf(str) === 0);
   

4. startsWithLetter()

   String.prototype.startsWithLetter = function() {
       return this[0].toLowerCase() !== this[0].toUpperCase();
   User.prototype.name = function() {
       return sys.name(this.id);
   rand = function rand(min, max) {
       return Math.floor(Math.random() * (max - min + 1)) + min;
   is_undefined = function(val) {
       return typeof (val) === 'undefined' || val === null;
   

5. startsWithString.prototype.startsWith || startsWith(searchString, position)

   String.prototype.startsWith = String.prototype.startsWith || function startsWith(searchString, position) {
      position = position || 0;
       return this.indexOf(searchString, position) === position;
   };
   

6. startswith(entity)

   String.prototype.startswith = function(entity) {
       if (!entity) return false;
       if ('string' !== typeof(entity)) return false;
       return 0 === this.indexOf(entity);
   };
   

7. startswith(needle)

   String.prototype.startswith = function (needle) {
      return this.indexOf(needle) === 0;
   };
   

8. startswith(s)

   String.prototype.startswith = function(s) {
     return (this.match("^"+s)==s)
   

9. startswith(str)

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