split each item of array

Question

I have an array like this

array = ["My Name", "1905", "more than three words"]

What I would like to do is split each item of the array by its space and then create 1 array with each word, so

["My", "Name", "1905", "more", "than", "three", "words"]

What I have tried so far is

words = []
array.each do { |a| words << a.to_s.split(" ") }

This returns

[["My", "Name"], ["1905"], ["more", "than", "three", "words"]]

But I have multiple arrays within an array. How would I go about achieving

["My", "Name", "1905", "more", "than", "three", "words"]

I'm missing something obvious aren't I?

simply flatten the array, see answer below.

wurde
– wurde

2015-07-09 14:02:55 +00:00
Commented Jul 9, 2015 at 14:02 — wurde
– wurde, Commented Jul 9, 2015 at 14:02

sawa · Accepted Answer · 2015-07-09 13:15:25Z

4

You need to flatten it, or do flatten while mapping.

array.flat_map{|e| e.split(" ")}

You can also do this:

array.inject([]){|a, s| a + s.split(" ")}

edited Jul 9, 2015 at 13:15

answered Jul 9, 2015 at 13:08

sawa

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Comments

Piotr Kruczek · Accepted Answer · 2015-07-09 13:06:28Z

3

Try this:

array.join(' ').split(' ')

Example:

["My Name", "1905", "more than three words"].join(' ').split(' ') # => ["My", "Name", "1905", "more", "than", "three", "words"]

answered Jul 9, 2015 at 13:06

Piotr Kruczek

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Comments

Jesus Castello · Accepted Answer · 2015-07-09 13:16:58Z

3

This should give you the output that you want.

array.join(" ").split

Alternative using scan:

array.join(" ").scan(/\S+/)

edited Jul 9, 2015 at 13:16

answered Jul 9, 2015 at 13:08

Jesus Castello

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Comments

wurde · Accepted Answer · 2015-07-09 14:02:19Z

0

array.collect { |a| a.split(" ") }.flatten 
#=> ["My", "Name", "1905", "more", "than", "three", "words"]

answered Jul 9, 2015 at 14:02

wurde

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