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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 …
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...
6 thg 9, 2016 · There are 5 6 NINE (or 63*, depending how you count) different ways to write multi-line strings in YAML. TL;DR Use > if you want to break a string up for readability but for it to still be treated as a single-line string: interior line breaks will be stripped out, there will only be one line break at the end: key: > Your long string here. Use | if you want those line breaks to be …
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.
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
31 thg 10, 2014 · The chomp () function will remove (usually) any newline character from the end of a string. The reason we say usually is that it actually removes any character that matches the current value of $/ (the input record separator), and $/ defaults to a newline.
27 thg 9, 2012 · 2 chomp removes the newline characters (if any) from the end of a line of text. It is useful because, then you don't have to worry about the particular way that your input represents newlines--Perl handles the details for you. When should you use it? Whenever you need to remove trailing newlines! Reading data from a text file is the most common ...
17 thg 2, 2016 · Chomp removes new line character from the end of the line as you are looping through each line of the file. Since you are matching the line with a text without new line, there is no match found and the file is read until the end.
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?
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