mozilla
Your Search Results

    JSClass.call

    The JSClass.call and JSClass.construct hooks are called when a custom object is used like a function. These hooks are of type JSNative.

    Note that when a custom object is called, a this argument is calculated for it just as if it were a function. That is, the obj argument received by the JSNative is the this argument, not the custom object that was called!

    // Suppose this object has JSClass.call and JSClass.construct hooks.
    var custom = new SpecialCustomObject();
    
    custom();      // The JSClass.call hook receives the global object as the obj parameter.
    new custom();  // The JSClass.construct hook receives the global object as the obj parameter.
    
    var x = { specialMethod: custom };
    x.specialMethod();      // The JSClass.call hook receives x as the obj parameter.
    new x.specialMethod();  // The JSClass.construct hook receives x as the obj parameter.
    

    The custom object that was called is JSVAL_TO_OBJECT(JS_ARGV_CALLEE(argv)).

    See Also

    Document Tags and Contributors

    Contributors to this page: fscholz, Jorend, arai
    Last updated by: arai,
    Hide Sidebar