Unlock The Power Of Functions In Programming: Their Role In Code Efficiency

function

A relationship that assigns exactly one output value to one input value.

A function is a set of instructions or rule that performs a specific task or calculation to produce a result or value. It is a reusable piece of code that takes inputs, performs some operations on those inputs, and returns outputs or results.

Functions are widely used in programming as they help to break down complicated tasks into smaller and more manageable pieces of code, making it easier to understand, maintain and debug.

In many programming languages, including JavaScript, functions can be defined and called in different ways. A function can be declared with a function keyword or created as an anonymous function using the arrow notation. It can accept arguments or parameters that can be used to customize or modify its behavior, and it can return a single value or multiple values. A function can also be used as a callback function or passed as an argument to another function.

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