Call function programmatically/"by string" in coffeescript

Question

Possible Duplicate:
Dynamic object property name

I have a function that I need to call based on a user inputted data.

So for example, I have:

models.cat
models.dog

Now, I want to be able to call models.[my_str] where my_str = "snake". So the computer would think it is trying to execute models.snake. Is there a way to do this in javascript or better yet coffeescript?

How about `models.prototype[my_str]()` – patrickmcgraw Jan 16 '13 at 22:21 — patrickmcgraw, Jan 16 '13 at 22:21
`models[my_str]()` should work, yes? – Austin Greco Jan 16 '13 at 22:23 — Austin Greco, Jan 16 '13 at 22:23

score 14 · Accepted Answer · answered Jan 16 '13 at 22:23

14

You should be able to call it like so:

models[my_str]();

This should work in both Javascript and Coffeescript.

answered Jan 16 '13 at 22:23

Marc Baumbach

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perfect. Works like a charm – Alexis Jan 16 '13 at 23:10
1

You could also do `models[my_str].call()` which does the same thing, just has a different feel to it. – jeremywoertink Mar 12 '14 at 17:28

Call function programmatically/"by string" in coffeescript

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