Coffeescript - call a function from a string, javascript code does not work

Question

So in javascript I would dynamically call a function from a string like this:

window["function_name"](args);

However if I try this in coffeescript it does not work, is this something to do with the way coffee script does not have a function in the global namespace?

All of the functions are wrapped in a function like this:

(function() {
#code here
}).call(this);

So how do I call a function from a string in coffeescript?

It depends on where/how the function is defined. You can always write @someFn = () ->... and in another file @['someFn'](). But if your talking about one in the current file, you'll have to make it an object method, either of window as I did or some other object. — Jared Smith
– Jared Smith, Commented Aug 4, 2016 at 17:53

imazzara · Accepted Answer · 2016-08-04 17:08:10Z

2

I tried here ("Try Coffescript" section) this (sorry about identation):

  ( ->
    foo = () ->
     alert "it works" ;
  ).call(this); #IFFE on Coffescript

  window["foo"]() ;

And it seems to work

answered Aug 4, 2016 at 17:08

imazzara

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Runner · Accepted Answer · 2016-08-04 16:55:00Z

0

window["function_name"](args);

This code in CoffeeScript compiles to:

window["function_name"](args);

in javscript.

So the problem is not CoffeeScript, but your code.

answered Aug 4, 2016 at 16:55

Runner

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