Method Array.unique

Remove any duplicates from an array

• Syntax Array Array.unique()
  
  This function will return a new array with duplicates of the original array removed
• Return value A new array with no duplicates
• Examples

  To remove the duplicates in the array (0,2,4,2,6,4,8,6,10);

  // Define array
  var a = new Array(0,2,4,2,6,4,8,6,10);
  // Output is (0,2,4,8,6,10)
  a.unique();

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  Source

  Unless otherwise noted all code in the JSLab Standard Library is licensed as GPLv3. See http://www.gnu.org/licenses/gpl.html for the entire license.

  // ************************************************************************** // Copyright 2007 - 2009 Tavs Dokkedahl // Contact: http://www.jslab.dk/contact.php // // This file is part of the JSLab Standard Library (JSL) Program. // // JSL is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 3 of the License, or // any later version. // // JSL is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program. If not, see <http://www.gnu.org/licenses/>. // *************************************************************************** // Return new array with duplicate values removed Array.prototype.unique = function() { var a = []; var l = this.length; for(var i=0; i<l; i++) { for(var j=i+1; j<l; j++) { // If this[i] is found later in the array if (this[i] === this[j]) j = ++i; } a.push(this[i]); } return a; };