js is a high level scripting language, meaning it has a higher abstraction of the machine’s bare hardware than a lower-level scripting language like C or Java would. This is what makes it so flexible and fast to program. It also reduces the amount of memory that needs to be allocated for a specific task because it doesn’t need to compile code on a low level, so there is less overhead.
Its flexibility and speed has made it an essential part of web development. In fact, it is widely considered to be one of the most important languages in the field of web development. The majority of web sites and web apps use it to make them more dynamic and interactive.