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I need a code that collects a user's input with gets.chomp, and if they repeat the same answer twice, it will read an error message. What is the best method to do this? Is there a way to collect the answers and then continue to check for duplicates?
Keep an history of answers.
history = []
loop do
answer = gets.chomp
if history.include? answer
puts "already answered"
next
else
history.push answer
end
# do something
end
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it should be compiled and started only x times and then not anymore, should also be not hackable. for example no use of lock file.
maybe a use-counter in the binary?
im expecting suggestions to my problem here.
For this must use destructur.
Destroyed variables after scope and must nul
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I have a hash like the one shown below
profile={"acakxqcnwbhtfcppyilk"=>"unlocked", "achurktnaavqqnwtfvvt"=>"locked", "chrofmjydwzcbswhpste"=>"locked", "ChromeProfile"=>"unlocked", "clcqozsfdblntkwlcheo"=>"unlocked", "gpqhioztlmkoitjqxerm"=>"unlocked", "hododpaxflyzgpwortjl"=>"unlocked", "hyqnjrpttwclueqwttdw"=>"unlocked", "jtdeyzcxdpgblxmpldtx"=>"unlocked", "kifxvxmbifkicmapedir"=>"unlocked", "lucjkeeqzynhjurnpewl"=>"unlocked", "lyccchkgyscmljcvkvcj"=>"unlocked", "nmqhlowcqnwmwbxijwry"=>"unlocked", "nseucpicwbcyviargwjt"=>"unlocked", "osecuzrbvodwgkdwovjd"=>"unlocked", "pqhlxugxqppfybxdkemr"=>"unlocked", "qgoaryzyriohpwzbprgg"=>"unlocked", "rwtlttvtbrmziyuimgad"=>"unlocked", "sxkcvnlsgqauwcbkmjcy"=>"unlocked", "uyfvlzyllwimhklmmmns"=>"unlocked", "vgvobxhpflhappnajizs"=>"unlocked", "vlbbphwoyweyguhcmdwv"=>"unlocked", "vrsjncafxunswclescvu"=>"unlocked", "wxsninefjvtrxvntgkni"=>"unlocked", "xdqndtyyxctkovyfsldi"=>"unlocked", "ycvguesevlbopicmxfbc"=>"unlocked"}
I have to return the key which has the value 'locked', If there are more than one 'locked' is present, then the first one has to be returned.
Is there any specific method is available to accomplish task?
Try the key() method
profile.key('locked')
Read more here
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I'm trying to use a negative value in a string which is in a hash.
{"amount"=>"-50.01", "currency"=>"CAD"}
If I write transaction.amount I get 0.5001E2, if I use to_f I get 50.01.
I'm trying to extract the -50 value.
Thank you for your help!
Try
transaction['amount']
For example
a = {"amount"=>"-50.01", "currency"=>"CAD"}
Then
a['amount']
returns '-50.01'
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I'm trying to split a string in 2 parts: the first word and the last one.
I know I need to use the .split method but don't know how.
Is this what you want to do?
first, *_, last = "now is the time for all".split
first #=> "now"
last #=> "all"
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I'm trying to edit in column selection mode on Rubymine but I have some lines I wish to skip.
In the code below I would like to edit both "to_change" at the same time.
I wish to duplicate the cursor and every edit action will occur in them both.
In this code if I will select the start of both "to_change" and press '#', the code here:
def a
to_change
end
def b
to_change
end
will turn to
def a
#to_change
end
def b
#to_change
end
Multiple selection/editing is not supported yet, you can follow this feature request.