JavaScript Null Handling in Functions

This repository demonstrates a common error in JavaScript: forgetting to explicitly check for null or undefined values as function inputs.

The bug.js file shows a simple addition function that is vulnerable to errors if null values are passed. The bugSolution.js demonstrates the corrected function which uses appropriate null checks to avoid these errors.

How to run

1. Clone this repository.
2. Open the bug.js and bugSolution.js files in your favorite code editor.
3. Run the bug.js to see the error behavior.
4. Observe that the bugSolution.js handles null values gracefully.

This example highlights the importance of defensive programming and how simple null checks can prevent significant problems in your applications.