CODEWITHSUNDEEP
rubymethods
verdure
verdure

Reputation: 3341

Ruby convert string to method name

I have two methods defined in my ruby file. 

def is_mandatory(string)
      puts xyz
end
def is_alphabets(string)
      puts abc 
end

An array containing the names of the methods. 

    methods = ["is_mandatory", "is_alphabets"]

When I do the following 

    methods.each do |method| puts method.concat("(\"abc\")") end

It just displays, is_mandatory("abc") is_alphabets("abc") rather than actually calling the method.

How can i convert the string to method name? Any help is greatly appreciated.

Cheers!!

Upvotes: 43

Views: 33842

Answers (4)

Gerard Morera
Gerard Morera

Reputation: 859

All previous solutions with send are fine but it is recommended to use public_send instead (otherwise you can be calling private methods).

Example:

'string'.public_send(:size)
=> 6

Upvotes: 2

Chowlett
Chowlett

Reputation: 46675

Best way is probably:

methods.each { |methodName| send(methodName, 'abc') }

See Object#send

Upvotes: 63

vikas95prasad
vikas95prasad

Reputation: 1342

You can also add hash to send parameters to the method.

send("method_name", "abc", {add more parameters in this hash})

Upvotes: 0

Aurril
Aurril

Reputation: 2469

Try using "send".

methods.each do |method| 
  self.send(method, "abc")
end

Upvotes: 15

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