I try to use coffeescript in my Grails-project. To achive this I decided to use coffeescript-resources plugin. But compiled coffee in result view looks like follows:
(function() {
var someFunc;
someFunc = function() {
return alert("hello");
};
}).call(this);
and in this case I cant call it. I have not found any proper configurations in the plugin documentation to avoid using anonymous functions while compiling coffee-file. How can I solve this?
From the fine manual:
Lexical Scoping and Variable Safety
[...]
Although suppressed within this documentation for clarity, all CoffeeScript output is wrapped in an anonymous function:(function(){ ... })();This safety wrapper, combined with the automatic generation of thevarkeyword, make it exceedingly difficult to pollute the global namespace by accident.If you'd like to create top-level variables for other scripts to use, attach them as properties on window, or on the exports object in CommonJS. The existential operator (covered below), gives you a reliable way to figure out where to add them; if you're targeting both CommonJS and the browser:
exports ? this
So that self-invoking function wrapper exists to prevent you from polluting the global namespace. If you want to put something into the global namespace then you have to put it there explicitly; in a browser, you can do that using:
window.someFunc = -> alert('hello')
or
@someFunc = -> alert('hello')
The @someFunc form assumes that you're at the top of the scope (i.e. not inside another function or class).
Alternatively, you could find a way to compile your CoffeeScript with --bare:
-b, --bare
Compile the JavaScript without the top-level function safety wrapper.