Вызов метода из строки с именем метода в Ruby
Более простой способ - просто сгенерировать SVG в строку, создать HTML-элемент оболочки и вставить строку svg в элемент HTML с помощью $("#wrapperElement").html(svgString). Это прекрасно работает в Chrome и Firefox.
3 ответа
To call functions directly on an object
a = [2, 2, 3]
a.send("length")
# or
a.public_send("length")
which returns 3 as expected
or for a module function
FileUtils.send('pwd')
# or
FileUtils.public_send(:pwd)
and a locally defined method
def load()
puts "load() function was executed."
end
send('load')
# or
public_send('load')
Documentation:
Personally I would setup a hash to function references and then use the string as an index to the hash. You then call the function reference with it's parameters. This has the advantage of not allowing the wrong string to call something you don't want to call. The other way is to basically eval the string. Do not do this.
PS don't be lazy and actually type out your whole question, instead of linking to something.
Use this:
> a = "my_string"
> meth = a.method("size")
> meth.call() # call the size method
=> 9
Simple, right?
As for the global, I think the Ruby way would be to search it using the methods method.