What is 'optional chaining' in JavaScript and how to use it? - it greatly simplifies work

The article discusses optional chaining in JavaScript, which is a useful tool that simplifies working with objects. Optional chaining is a way to safely access object properties, helping to avoid errors when an object is null or undefined. This allows developers to write cleaner code by eliminating the need to check if objects exist before attempting to access their properties. The author provides examples of how this solution works in practice, showcasing its functionality. Understanding this feature is important as its popularity grows in modern JavaScript, and mastering it can lead to more concise and readable code.