Function Pointers In Objects

I have a javascript function that takes an object as a parameter. I want one of the properties of passed object to be a function pointer. But the function is executed which I don

Solution 1:

I want one of the properties of passed object to be a function pointer. But the function is executed which I don't want to happen.

That sounds like instead of passing a reference to the function, you are executing the function and passing the return value.

Maybe in your original code you have

myFunc( {foo:"bar", onDone: myFuncPtr()} );

which calls myFuncPtr and assigns the return value to onDone.

The code in the question is fine though, just call o.onDone() inside myFunc.

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As already said, there are no pointers in JavaScript, it's much simpler than that. Functions are just data types such as strings, numbers, arrays etc, which happen to be callable.

Solution 2:

var myFuncPtr = function(){alert("Done");};

function myFunc(o)
{
    alert("Hello " + o.foo);
    o.onDone();
}
myFunc( {foo:"bar", onDone: myFuncPtr} );

This does your trick. The onDone property of your object 'points' to the correct function, you can just call that.

Solution 3:

Theerrrreee is no pointer in ECMAscript...... Asposx.yxm--dfgdfg.:!!

beside that... you might just want to call:

o.onDone();

within myFunc().

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