What is whitespace in Ruby?
6 Answers. 6. 45. If by “white space” you mean in the Regular Expression sense, which is any of space character, tab, newline, carriage return or (I think) form-feed, then any of the answers provided will work: s.match(/\s/) s.index(/\s/) s =~ /\s/ or even (not previously mentioned) s[/\s/]
Why Ruby language is not popular?
The lack of developers with Ruby’s expertise, is also somewhat affected by the lower popularity of the language in the industry. But, at Codest, our developers believe that the reason of its reputation is only due to the fact that Ruby does not have such a good marketing strategy as other top languages.
How do you get rid of surrounding whitespace in Ruby?
If you want to remove only leading and trailing whitespace (like PHP’s trim) you can use . strip , but if you want to remove all whitespace, you can use . gsub(/\s+/, “”) instead .
What does whitespace mean in programming?
What is whitespace? Whitespace is any string of text composed only of spaces, tabs or line breaks (to be precise, CRLF sequences, carriage returns or line feeds). These characters allow you to format your code in a way that will make it easily readable by yourself and other people.
Is Ruby space sensitive?
Ruby is whitespace sensitive, too.
How do you replace letters in a string in Ruby?
Changing a Section of a String Ruby allows part of a string to be modified through the use of the []= method. To use this method, simply pass through the string of characters to be replaced to the method and assign the new string.
What does Strip mean in Ruby?
The . strip method removes the leading and trailing whitespace on strings, including tabs, newlines, and carriage returns ( \t , \n , \r ).
What is GSUB in Ruby?
gsub! is a String class method in Ruby which is used to return a copy of the given string with all occurrences of pattern substituted for the second argument. If no substitutions were performed, then it will return nil. If no block and no replacement is given, an enumerator is returned instead.
What makes whitespace different from other languages?
Unlike most programming languages, which ignore or assign little meaning to most whitespace characters, the Whitespace interpreter ignores any non-whitespace characters. Only spaces, tabs and linefeeds have meaning. The language itself is an imperative stack-based language.
Does whitespace matter Java?
The term white space refers to characters of a file that you can’t see — spaces, tabs, and line breaks. In Java, white space does not matter.