Whitespace

Whitespace is an esoteric programming language that uses only whitespace characters. It is primarily used for artistic and humorous purposes, rather than practical programming tasks.

Hello, world code example:

import : scheme base
         scheme write
display "Hello world!"
newline

Popularity: Less than 1% of developers are using or have used this language.*
*According to StackOverflow's 2023 survey.

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