CODEWITHSUNDEEP
ruby
Ebonite6
Ebonite6

Reputation: 13

Splitting a string to get a number

I want to grab a number from a list of scores e.g. "Score:5" or "Score:10".

I can't find a way to grab the number and turn it into an int so I can use it for an array. Any help?

My code as follows looks for a score that contains a number

range = 0
array = []
Dir["C:/Users/Cam/Desktop/warmup/Warmup_tally/*"].each do |filename|
  File.open(filename) do |f|
    f.each_line do |line|
      if line.include? "Score"
        puts line.split(':')
        range += 1
        array.push(-0, "#{line}") 
      end
    end
  end
end

but I want to only grab that number and put it inside Array.

Upvotes: 0

Views: 67

Answers (2)

Rajagopalan
Rajagopalan

Reputation: 6064

Let's assume your array is

a=["Score:5","Score:10","Score:11"]

Code

p a.map{|x| x[/\d+/].to_i}

output

[5, 10, 11]

Update

I have taken your inner code and corrected it

if line.include? "Score"
   array.push line[/\d+/].to_i
end

Or 

array.push line[/\d+/].to_i if line.include? "Score"

Now print the array, output contains only the score numbers.

Upvotes: 4

jerhinesmith
jerhinesmith

Reputation: 15492

Could you just split on the : character? Something like this:

prefix, score = "Score:5".split(':')
# => ["Score", "5"]

Then you could just do score.to_i if you need it to be an integer.

Upvotes: 2

Related Questions