IDs in HTML become global variables in JavaScript
The article on CSS-Tricks discusses an interesting topic regarding named element IDs in JavaScript. Typically, programmers use IDs that are associated with DOM elements and refer to them in JavaScript code. However, the author highlights that IDs can be treated as global variables within the context of JavaScript. This means that if you define an ID for an HTML element, you can directly reference it in JavaScript, which can simplify the code and enhance its readability. What’s intriguing is that this approach has its limitations, and one must be aware of potential conflicts with other global variables. Thus, every programmer should ensure that the ID is unique and well thought out to avoid unintended errors. The article concludes with several examples demonstrating how this technique can be applied in practice while maintaining good programming practices.