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3 thg 9, 2011 · chomp removes the newline at the end of a string. $/ is a variable (as you found, defaulting to newline) that you probably don't have to worry about; it just tells perl what the 'input record separator' is, which I'm assuming means it defines how far
18 thg 1, 2023 · What is the difference between gets.chomp.to_i and gets.chomp in Ruby? What does it do and how does it work?
27 thg 5, 2014 · I have a file named test.txt that is like this: Test Foo Bar But I want to put each line in a array and print the lines like this: line1 line2 line3 But how can I do this?
6 thg 8, 2012 · Notice a few things: I have use strict and use warnings pragmas. Always use these in all of your programs. These help spot about 90% of errors that people make in programs. I check whether the arguments are there before I do anything else. I use scalar to force @ARGV into giving me its scalar value (which it would do anyway in this context), and see if there are …
How can I remove the last character of a string if it is a newline? "abc\\n" --> "abc"
2 thg 5, 2025 · Errno::EINVAL on STDIN means that STDIN is closed or redirected. In other words, you can't read from it. Check the simple things first: are you calling STDIN.gets after STDIN.close? Are you calling it inside a thread with no access to the terminal? Is the ruby on the working computer the same version and build as the one on the non-working one? If none of …
31 thg 7, 2014 · Don't forget that you can run this from your command line, and it will explain the capabilities of chomp or any other command: perldoc -f chomp.
I learned that gets creates a new line and asks the user to input something, and gets.chomp does the same thing except that it does not create a new line. gets must return an object, so you can cal...
25 thg 4, 2022 · How do I remove the last character from a string? "abcdefghij" → "abcdefghi"
11 thg 2, 2012 · To be perfectly accurate chomp not only can delete whitespace, from the end of a string, but can also delete arbitrary characters. If the latter functionality is sought, one can use: '\naaaa\nbbbb'.delete_prefix( '\n' ) As opposed to strip this works for …
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