Question

96

rated 0 times [ 100] [ 4] / answers: 1 / hits: 66202 / 14 Years ago, fri, september 17, 2010, 12:00:00

i hope this question is not too simple, but i have no idea :(

How can i start a function with a var in the function name?

For example ...

my functions

function at_26();

function at_21();

function at_99();

start the function

var test_id = 21;   

at_'+test_id+'();   // doesn't work

I hope somebody can help me.

Thanks in advance!
Peter

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answered 14 Years ago virginia · Accepted Answer

Store your functions in an object instead of making them top level.

var at = {

    at_26: function() { },

    at_21: function() { },

    at_99: function() { }

};

Then you can access them like any other object:

at['at_' + test_id]();

You could also access them directly from the window object…

window['at_' + test_id]();

… and avoid having to store them in an object, but this means playing in the global scope which should be avoided.