Implementing a No-Operation Function in JavaScript

The "noop" function, short for "no operation," is a placeholder function that does nothing when called. It's a surprisingly useful tool in software development, often used as a default value for callbacks, event handlers, or function arguments when a specific action isn't yet defined or needed. This challenge asks you to implement a simple yet essential noop function in JavaScript.

Problem Description

Your task is to create a JavaScript function named noop. This function should take no arguments and perform no actions. When called, it should simply return undefined. The purpose of noop is to act as a stand-in for a function that hasn't been implemented yet, or when you need to pass a function as an argument but don't want any code to execute.

Key Requirements:

• The function must be named noop.
• It should accept no arguments.
• It should return undefined when called.
• It should not throw any errors.

Expected Behavior:

Calling noop() should result in undefined being returned. The function should not have any side effects.

Edge Cases to Consider:

• Calling noop with arguments (although it shouldn't accept them, ensure it doesn't error).
• Calling noop multiple times.
• Using noop in different contexts (e.g., as a callback, as a default value).

Examples

Example 1:

Input: noop()
Output: undefined
Explanation: The noop function is called with no arguments and returns undefined as expected.

Example 2:

Input: noop(1, 2, 3)
Output: undefined
Explanation: The noop function is called with arguments, but it ignores them and still returns undefined.

Example 3:

Input: let callback = noop; callback();
Output: undefined
Explanation: noop is assigned to a variable and then called. It returns undefined.

Constraints

• The function must be implemented in standard JavaScript.
• The function should be as concise as possible while fulfilling the requirements.
• The function should not rely on any external libraries or frameworks.

Notes

Consider the simplest possible implementation. The goal is to create a function that does absolutely nothing and returns undefined. Think about how you can achieve this with the fewest lines of code. While you could use an arrow function, a traditional function declaration is perfectly acceptable.