Question

please help
I have a simple example here

<script type="text/javascript" language="javascript">
    function test(callback1) {
        callback1();
    }
    var f1 = function () {
        alert(1);
    }
</script>

Currently, parameter of the test function is a function, when abc button is clicked, test function will be called and then test will call f1. Everything okie with me.

However, I’d like a small change like this: parameter of the test function will be a string, I mean it should be a function name, test(‘f1’) instead of test(f1).
Is it possible?How can I implement this?

Thanks

Answer 1

window[callback1]();

Depending on use I would prefer prepare separate functions map.

var funcMap = {
   f1: function() {...},
   ...
};
funcMap['f4'] = function() {...};
function test(callback1) {
    funcMap[callback1]();
}

It definitely doesn’t bloat window namespace and is more secure (window has more methods provided by browser).

Don’t use eval – it’s evil!