Nodejs String Starts With startswith(s)

Method Source Code

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

Related

1. 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;
   

2. 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;
   };
   

3. startsWithstartsWith(prefix)

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

4. startswith(entity)

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

5. startswith(needle)

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

6. startswith(str)

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

7. startswith(str)

   String.prototype.startswith = function(str) {
     return (this.substring(0, str.length) === str) ? true : false;
   

8. startWith(pre)

   String.prototype.startWith = function(pre){
     return new RegExp("^("+pre+")(.*)").test(this);
   };
   

9. startWith(s)

   String.prototype.startWith = function (s) {
       return this.indexOf(s) == 0