Nodejs String Insert insert(index, string)

Method Source Code

/**//from w w  w  .j ava2  s .c om
 *   Helper functions for String operations.
 */

/**
 *   Inserts specified string inside String object on specified index.
 */
String.prototype.insert = function (index, string) {
   if (index > 0) {
      return this.substring(0, index) + string + this.substring(index, this.length);
   }
   else {
      return string + this;
   }
};

Related

1. insert(index, string)

   String.prototype.insert = function (index, string) {
     if (index > 0)
       return this.substring(0, index) + string + this.substring(index, this.length);
     else
       return string + this;
   };
   

2. insert(index, string)

   Object.size = function(obj) {
       var size = 0, key;
       for (key in obj) {
           if (obj.hasOwnProperty(key)) size++;
       return size;
   };
   String.prototype.insert = function (index, string) {
     if (index > 0)
   ...
   

3. insert(start, new_string)

   String.prototype.insert = function(start, new_string)
     return this.slice(0, start) + new_string + this.slice(start);
   };
   String.prototype.splice = function(start, length, insert)
     return this.substring(0, start) + insert + this.substring(start + length);
   };
   Object.prototype.extend = function(other)
   ...
   

4. insert(start, new_string)

   String.prototype.insert = function(start, new_string)
     return this.slice(0, start) + new_string + this.slice(start);
   };
   String.prototype.splice = function(start, length, insert)
     return this.substring(0, start) + insert + this.substring(start + length);
   };
   Object.prototype.extend = function(other)
   ...
   

5. insert(start, new_string)

   String.prototype.insert = function(start, new_string)
     return this.slice(0, start) + new_string + this.slice(start);
   };
   String.prototype.splice = function(start, length, insert)
     return this.substring(0, start) + insert + this.substring(start + length);
   };
   

6. insert(text,at)

   String.prototype.insert = function(text,at) {
       if(at == null || at > this.length)
           at = this.length;
       else if(at < 0)
           at = 0;
       return this.substring(0,at)+text+this.substring(at);