Method Array.pad

Pad an array to a given size with a given value

• Syntax Array Array.pad(Number size , Mixed value )
  
  This function will return a copy of the array padded to length size with value value. If size is less than or equal to the length of the array a copy of the array is returned. If size is negative the array is padded from the left. If positive it is padded from the right.
• Parameters

  Number size

  The size you want the resulting array to be.

  Mixed value

  The value to insert when padding.

• Return value The new array padded to the specified size with the specified value.
• Examples

  To initialize a 200x100 two-dimensional array so that all elements are 0

  // Define first array with 100 elements of value 0
  var b = [].pad(100,0);
  // Define a new array with 200 elements all having the value of an array b
  var a = [].pad(200,b);
  

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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/>. // *************************************************************************** // Pad an array to given size with a given value Array.prototype.pad = function(s,v) { var l = Math.abs(s) - this.length; var a = [].concat(this); if (l <= 0) return a; for(var i=0; i<l; i++) s < 0 ? a.unshift(v) : a.push(v); return a; };