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    Function.arguments

    Deprecated
    This feature has been removed from the Web standards. Though some browsers may still support it, it is in the process of being dropped. Do not use it in old or new projects. Pages or Web apps using it may break at any time.

    Summary

    The function.arguments property refers to an an array-like object corresponding to the arguments passed to a function. Use the simple variable arguments instead.

    Description

    The syntax function.arguments is deprecated. The recommended way to access the arguments object available within functions is simply to refer to the variable arguments.

    In the case of recursion, i.e. if function f appears several times on the call stack, the value of f.arguments represents the arguments corresponding to the most recent invocation of the function.

    Examples

    function f(n) { g(n - 1); }
    
    function g(n) {
      console.log('before: ' + g.arguments[0]);
      if (n > 0) { f(n); }
      console.log('after: ' + g.arguments[0]);
    }
    
    f(2);
    
    
    // Output
    
    // before: 1
    // before: 0
    // after: 0
    // after: 1
    

    Specifications

    Specification Status Comment
    ECMAScript 1st Edition. Standard Initial definition. Implemented in JavaScript 1.0. Deprecated in favor of arguments.
    ECMAScript 5.1 (ECMA-262)
    The definition of 'arguments object' in that specification.
    Standard arguments object
    ECMAScript 6 (ECMA-262)
    The definition of 'arguments object' in that specification.
    Release Candidate arguments object

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
    Basic support (Yes) (Yes) (Yes) (Yes) (Yes)
    Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
    Basic support (Yes) (Yes) (Yes) (Yes) (Yes) (Yes)

    See also

    Document Tags and Contributors

    Contributors to this page: evilpie, Sheppy, fscholz, surjikal, Nickolay, ethertank, Mingun, Mgjbot, Maian
    Last updated by: Mingun,