I didn’t see a beginners forum - hope it’s ok to post this here.
I feel so daft as this must be the simplest question you’ve probably
been asked!
Anyway I’m new to Ruby and want to create a very simple script that
generates 100 random words and puts them into an array. I want to put
them into an array so I can use array.uniq! so there are no duplicates.
Here’s my code so far (although I have tried lots of variations
already).
I didn’t see a beginners forum - hope it’s ok to post this here.
I feel so daft as this must be the simplest question you’ve probably
been asked!
Anyway I’m new to Ruby and want to create a very simple script that
generates 100 random words and puts them into an array. I want to put
them into an array so I can use array.uniq! so there are no duplicates.
Hi and welcome to Ruby and its community!
Your code looks good so far.
You don’t need to create “first_letter”. Ruby returns the last
expression evaluated – so when you run that line, it returns a string
of seven characters.
def create_list(word)
words = []
words << word
end
Clever! There is however something even CLEVERER!
def create_list word # note the parenthesis are optional!
[word]
end
As you can see, there’s no need for a method just to do that.
100.times do
list << create_list(create_word)
puts list
end
A “Set” is an array that doesn’t accept duplicates. So you can do this:
require ‘set’
list = Set.new
100.times { list << create_word }
or…
list = []
100.times { list << create_word }
list.uniq!
|already).
|end
|Hope someone can help!
First of all it would be better, when asking for help, to tell exactly
what
the problem is (for example, including the error message you obtain or
explaining why the result your code produces is not what you expected).
This
way, you make things easier for people wanting to help you.
As for your code. The error is in the line
list << create_list(create_word)
The problem is that something called list has never been defined before,
so
ruby doesn’t know what to do with it. What you wanted is
list = create_list(create_word)
This creates a local variable called list and stores inside it the value
that
the create_list method returns.
I’m not completely certain what you were wanting to happen, this works
for
me, and seems to behave in pretty much the same way your looked like it
wanted to behave.
def create_word
Array(‘b’…‘z’).shuffle[0…6].join
end
list = Array.new
100.times { list << create_word }
Wow! Thank you all for such a fast response - I am shocked as I wasn’t
expecting replies so soon!
Also apologies as I forgot to take out the ‘first_letter’ variable. The
code was actually part of a bigger block to create a word based on
exactly what I want - a first_letter, middle_letters, and an end_letter.
I just tried to keep it simple when I posted here and forgot to clean
that bit out.
BIG thank you for all that helped - it looks easy when someone else
gives you the code I ended up using Aldric’s code:
def create_word
code block here to construct a random word to my exact spec
end
list = []
1000.times { list << create_word }
list.uniq!
puts list
Once again a huge thank you - the Ruby community really rocks! I also
appreciate the kind words of encouragement - I really did feel stupid
posting this as the answer just seemed so obvious blush.
I just hope I am as good as you guys one day!
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