nicer way to convert array of int to array of string

[S Kanakakorn]

Hi,

I'm quite new in Ruby. Here is what I wrote to convert array of
integer to array of string. I'm sure there is more compact and nicer
way to do this. Can I see the "ruby" way here ?

def convert(intArray)
stringArray = []
intArray.each do |i|
stringArray = stringArray + i.to_s.to_a
end
return stringArray
end

Thanks,

 

[Stefano Crocco]

Alle venerd=EC 9 febbraio 2007, S Kanakakorn ha scritto:

Hi,

I'm quite new in Ruby. Here is what I wrote to convert array of
integer to array of string. I'm sure there is more compact and nicer
way to do this. Can I see the "ruby" way here ?

def convert(intArray)
stringArray =3D []
intArray.each do |i|
stringArray =3D stringArray + i.to_s.to_a
end
return stringArray
end

Thanks,

stringArray=3DintArray.map{|i| i.to_s}

map passes each value of the array to the block and puts what the block=20
returns in a array.

Stefano

 

[Daniel Schierbeck]

Hi,

I'm quite new in Ruby. Here is what I wrote to convert array of
integer to array of string. I'm sure there is more compact and nicer
way to do this. Can I see the "ruby" way here ?

def convert(intArray)
stringArray = []
intArray.each do |i|
stringArray = stringArray + i.to_s.to_a
end
return stringArray
end

[1, 2, 3, 4].map{|i| i.to_s } #=> ["1", "2", "3", "4"]

#map calls the given block sequentially with each item in the array, and
returns an array containing the values returned by those calls.


Cheers,
Daniel Schierbeck

 

[Jules]

Alle venerdì 9 febbraio 2007, S Kanakakorn ha scritto:

Hi,

I'm quite new in Ruby. Here is what I wrote to convert array of
integer to array of string. I'm sure there is more compact and nicer
way to do this. Can I see the "ruby" way here ?

def convert(intArray)
stringArray = []
intArray.each do |i|
stringArray = stringArray + i.to_s.to_a
end
return stringArray
end

Thanks,

stringArray=intArray.map{|i| i.to_s}

map passes each value of the array to the block and puts what the block
returns in a array.

Stefano

If you use Ruby on Rails or Ruby 1.9 you'll also be able to do this:
intArray.map(&:to_s)