what does $foo mean
It's just a placeholderwhat mean foo in programming
Foo (pronounced FOO) is a term used by programmers as a placeholder for a value
that can change, depending on conditions or on information passed to the program.
Foo and other words like it are formally known as metasyntactic variables.
It can be helpful to use metasyntactic variables when creating sample code
because programmers don't have to create unique names for each variable value.
Nonsense placeholders make it easier to focus on the code's core concept
and functional goal.
When defining a template for creating a new user command, for example,
the syntax for the command could be written as:
Command foo (arg1, arg2)Copyright © 2021 Codeinu
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