Method Function.defer

Defer execution of a function.

• Syntax undefined Function.defer(Number n , Object obj , [ Mixed a2...an ])
  
  This method will defer execution of the function n milliseconds. If an object obj is provided then the function will be executed as a method on the object.
  
  Any extra arguments a2...an will be passed along to the function.
  
  Note that it is not possible to retrieve the return value from a defered function.
• Parameters

  Number n

  Number of milliseconds.

  Object obj

  The object which should invoke the function as a method. If null the the function is executed normally.

  Mixed a2...an (Optional)

  Addtional arguments are passed along to the function.

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

  To defer a function 1 second passing a single argument to the function

  // Define a function which alerts the first argument
  var f = function(){alert(arguments[0]);};
  // Defer execution 1 second passing the string 'JSLab'
  f.defer(1000,null,'JSLab');
  // Output is 'JSLab'

  To defer a method 4 seconds

  // Define an object
  var o = {};
  // Define a method
  o.m = function(){alert(this.constructor);};
  // Defer execution of method 4 seconds
  o.m.defer(4000,o);
  // Output is 'Object...'

• Download
  Download this function including dependencies
  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/>. // *************************************************************************** Function.prototype.defer = function(n,o) { // Get arguments as array var a = []; for(var i=2; i<arguments.length; i++) a.push(arguments[i]); var that = this; window.setTimeout(function(){return that.apply(o,a);},n); };