Javascript use variable name to thread a function?

Question

In GSC, you are able to make a variable become the name of a function that you thread. It looks like this:

variable = "pizza";
[[variable]]();

the engine then reads it like:

pizza();

my question is, is it possible to do that in javascript as easily or do I have to make if/else/switch statements for it?

There are many similar questions, for example https://stackoverflow.com/questions/3619046/use-javascript-variable-as-function-name?rq=1 — Denys Séguret, May 23 '15 at 14:25
Relevant? http://stackoverflow.com/questions/5905492/dynamic-function-name-in-javascript — b2238488, May 23 '15 at 14:26
@b2238488: Not really, that one talks about creating functions — Bergi, May 23 '15 at 14:32
that is for jquery... also GSC is a scripting language for COD. — awesomeman24356, May 23 '15 at 14:36
What is "COD" ? Can include meanings of letters in acronyms "GSC" "COD" , at Question ? See http://stackoverflow.com/help/how-to-ask — guest271314, May 23 '15 at 14:45
@guest271314: he seems to refer to http://cod1.eu/script/dm.gsc — Bergi, May 23 '15 at 16:42

score 0 · Accepted Answer · answered May 23 '15 at 14:33

my question is, is it possible to do that in javascript as easily or do I have to make if/else/switch statements for it?

If you want to use the safe, fail-proof way, then you can access such variables only in two contexts.

If the variable is in global context, in the case of which, you can do window[variable]();
Else if the variable is a property of an object, in the case of which, you can do obj_name[variable](), basically anything that can be accessed via bracket notation. window is an object too.

Then there's always the dirty way:

You can use highly evil eval like eval(variable + "()") or you can use the Function constructor in the same way. Note however that both the methods can be misused and are highly advised against.

1 Answers1