CODEWITHSUNDEEP
ruby
Martin
Martin

Reputation: 11336

How to split string into array as integers

Given something like this

@grid = "4x3".split("x")

The current result is an array of strings "4","3"

Is there any shortcut to split it directly to integers?

Upvotes: 17

Views: 23233

Answers (4)

Andrew Grimm
Andrew Grimm

Reputation: 81691

Have you tried seeing if the expression parser mentioned in an answer to your previous question would allow you to do this?

Upvotes: 0

EdvardM
EdvardM

Reputation: 3102

"4x3".split("x").map(&:to_i)

if you don't wan to be too strict,

"4x3".split("x").map {|i| Integer(i) }

if you want to throw exceptions if the numbers don't look like integers (say, "koi4xfish")

Upvotes: 10

Mike Lewis
Mike Lewis

Reputation: 64177

ruby-1.9.2-p136 :001 > left, right =  "4x3".split("x").map(&:to_i)
 => [4, 3] 
ruby-1.9.2-p136 :002 > left
 => 4 
ruby-1.9.2-p136 :003 > right
 => 3

Call map on the resulting array to convert to integers, and assign each value to left and right, respectively.

Upvotes: 47

kurumi
kurumi

Reputation: 25609

>> "4x3".split("x").map(&:to_i)
=> [4, 3]

Upvotes: 3

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