Method Date.getISODay

Return the ISO day number of the week.

• Syntax Number Date.getISODay([ Boolean UTC ])
  
  The ISO day number is defined as 1 to 7 for monday through sunday.
• Parameters

  Boolean UTC (Optional)

  If true then UTC is used; otherwise the local time is used.

• Return value A value between 1 and 7
• Examples

  To get the day of the 7th of March 2008

  // Create date
  var d = new Date(2008,2,7);
  // Output is 5 (friday)
  d.getISODay();

• Related Date.format   
• Download
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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 the ISO day number for a date Date.prototype.getISODay = function(utc) { // Native JS method - Sunday is 0, monday is 1 etc. var d = utc ? this.getUTCDay() : this.getDay(); // Return d if not sunday; otherwise return 7 return d ? d : 7; };