Method Array.union

Get the union of n arrays

• Syntax Array Array.union([ Array a0 ... an ])
  
  This function will return the union of the array calling the method and any number of arrays passed as arguments. Duplicates are removed from the result.
• Parameters

  Array a0 ... an (Optional)

  The arrays to include in the union.

• Return value A new array containing the union of (unique) elements.
• Examples

  To get the union between (0,1,2), (3,4,5) and (4,5,6)

  // Define array 1
  var a1 = [0,1,2];
  // Define array 2
  var a2 = [3,4,5];
  // Define array 3
  var a3 = [4,5,6];
  // Output is (1,2,3,4,5,6)
  a1.union(a2,a3);

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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.

  This function has dependencies and will not work stand-alone. Use the download button above instead of copy/paste.

  // ************************************************************************** // 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/>. // *************************************************************************** // Get the union of n arrays Array.prototype.union = function() { var a = [].concat(this); var l = arguments.length; for(var i=0; i<l; i++) { a = a.concat(arguments[i]); } return a.unique(); };