CODEWITHSUNDEEP
ruby
flanelman
flanelman

Reputation: 39

Split string variable into an array

just wondering how I would split a string variable up letter by letter and make it an array

my word variable is a randomly selected word from an array of words:

word = $file_Arr[rand($file_Arr.length)]

how would I then split this word into individual letters and add them to an array?

example: if word pulls the word "hello" from $file_Arr how would I make an array like: ["h", "e", "l", "l", "o"] out of my word variable

All I've been able to find online is people doing it with strings they type in and splitting on a comma, but how would I do it from a variable?

Upvotes: 0

Views: 188

Answers (2)

HParker
HParker

Reputation: 1637

First you can get a random word using sample. Then you can split the word into characters using chars.

irb(main):004:0> ["hi", "there"].sample.chars
=> ["h", "i"]
irb(main):005:0> ["hi", "there"].sample.chars
=> ["t", "h", "e", "r", "e"]

The result is different when called multiple times.

As far as you last question, you should be able to call chars the same way on a variable.

irb(main):006:0> x = "hi"
=> "hi"
irb(main):007:0> x.chars
=> ["h", "i"]

Upvotes: 1

Leo Correa
Leo Correa

Reputation: 19839

Use String#chars

http://ruby-doc.org/core-2.0.0/String.html#method-i-chars

2.3.1 :009 > "Hello World".chars
=> ["H", "e", "l", "l", "o", " ", "W", "o", "r", "l", "d"]

Upvotes: 1

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