Functions are an elementary part of programming languages. With them programs can be simplified and presented in a manageable and reusable way (modularisation). Functions can also help us to keep our code understandable, by clustering blocks of complex code into understandable packets. organised and understandable.
Functions act as jumps in the program. In the event of a function call, the program jumps to the position where the function is defined and then returns after the function has been executed.
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