Why use default parameters in JavaScript functions?

This article explains the concept of default parameters in JavaScript functions, covering the difference between parameters and arguments, how to set default values using the equal sign, and practical use cases such as safeguarding function return values. It includes code examples demonstrating how default parameters work when arguments are omitted or undefined, and highlights their importance in writing robust and error-resistant code. Aimed at developers of all levels, the article provides clear explanations and actionable insights for improving JavaScript function definitions.