Method Array.remove

Remove elements from an array

• Syntax undefined Array.remove([ Function f ])
  
  This function will remove any elements from the array which satisfy the conditions in the user provided function f. If no function i passed undefined and null values are removed.
  
  The function f should either return true if the element should be removed or false if it should not be removed.
• Parameters

  Function f (Optional)

  The function which decides whether an element is removed or not.

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

  To remove all numbers greater than 10

  // Define array
  var a = new Array(20,3,5,10,3,19,24,0);
  // Define a function which returns true if argument 0 is greater than 10
  function greaterThan10(i) {
    if (i > 10)
      return true;
    else
     return false;
  }
  // Output is (3,5,10,3,0)
  a.remove(greaterThan10);

  To remove all string with a length less than 5

  // Define array
  a = new Array('abc','abcdef','a','abcde');
  // Define a function which returns true if argument 0 is a string
  // with length less than 5
  function lengthLessThan5(i) {
    if (i.length < 5)
      return true;
    else
     return false;
  }
  // Output is ('abcdef','abcde')
  a.remove(lengthLessThan5);
  

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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/>. // *************************************************************************** // Remove values from an array optionally using a custom function Array.prototype.remove = function(f) { if (!f) f = function(i) {return i == undefined || i == null ? true : false;}; var l = this.length; var n = 0; for(var i=0; i<l; i++) f(this[i]) ? n++ : this[i-n] = this[i]; this.length = this.length - n; };