A subprogram that is given an identifier in order to perform a task and return a value. It is usually called from a variable and returns a value which can then be used like any other variable.
For example:
Functions
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A subprogram that is given an identifier in order to perform a task and return a value. It is usually called from a variable and returns a value which can then be used like any other variable.
For example:
Matty's Computer Science Blog 