Method Array.mapFunction

Call a function on every member of an array

• Syntax undefined Array.mapFunction(Function f )
  
  This method will call the function f on every member in the array. Each member is passed to the function f as its first argument.
• Parameters

  Function f

  The function to call on the array members

• Return value No explicit return value. Default value of undefined is returned.
• Examples

  To check that all members of an array is a number

  // Define array
  var a = [1,2,3,4];
  
  // Define function
  function checkNumber(x) {
    if (typeof x != 'number')
      throw new Error('Member not a number.');
  }
  
  // Call function on all members
  a.mapFunction(checkNumber);

• Related Array.mapMethod   
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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/>. // *************************************************************************** // Apply each member of the array as the first argument to the function f Array.prototype.mapFunction = function(f) { var l = this.length; for(var i=0; i<l; i++) f(this[i]); };