Callee is the "currently executing function" according to JavaScript 1.2 / ECMA 3
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions/arguments/callee On Fri, Sep 12, 2014 at 7:39 AM, Ben Noordhuis <[email protected]> wrote: > On Fri, Sep 12, 2014 at 6:25 AM, Jane Chen <[email protected]> wrote: > > What's the difference between This() and Holder() in > FunctionCallbackInfo? > > What does Callee() return? Can you show it with a JavaScript example? > > .Callee() is the JS function that called your API function. It's > equivalent to the (deprecated) arguments.callee property. > > .This() and .Holder() are often identical. The only time (that I know > of) when they are different is when instantiating objects that have a > prototypical inheritance chain: > > function F() {} > F.prototype = g; > var f = new F; > f.x = 42; > > Assume |g| is instantiated from an ObjectTemplate with a setter for > |x|. The last line invokes the setter with .This() pointing to |f| > and .Holder() pointing to |g|. > > -- > -- > v8-users mailing list > [email protected] > http://groups.google.com/group/v8-users > --- > You received this message because you are subscribed to the Google Groups > "v8-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- -- v8-users mailing list [email protected] http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
