What is function?

Answer 1

A function is a block of code which only runs when it is called. You can pass data, known as parameters, into a function. A function can return data as a result.

Answer 2

Add correct revelant tag and mention languages also

Answer 3

Function is a code which runs when it is called.

It can be be called by either click event or any type of event handlers.

Answer 4

A function is like a machine. It takes input and gives an output. So it is a block of code which gives the output (returns data) depending on the input (also called the parameter). But not all functions return something or takes an input.

Answer 5

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