<dialog>
The introduction of the HTML <dialog> tag marks a significant shift in how web developers create interactive elements like modals and popups. Streamlining processes traditionally handled by JavaScript libraries, this tag enables the development of accessible, native modal windows directly in HTML, with minimal CSS required.
null
undefined
There are two important values in JavaScript that you frequently come across in almost all your projects: null and undefined. JavaScript provides convenient tools to handle these values without writing multiple conditions, allowing you to write cleaner and more efficient code.
NaN
In JavaScript, NaN has a special place. Although it is technically a number itself, it represents values that are not valid numbers. For this reason, it has some interesting properties, pitfalls, and tricky points worth mentioning.
