The value of the "$" character in JavaScript

Question:

What does the dollar sign ( $ ) mean in JavaScript? What is it responsible for and where is it appropriate to use it?

Answer:

Nothing fancy, it just can be used in identifiers, unlike many other languages. That is, abc$def is a legitimate variable or function name, for example.

Have you confused javascript with the jQuery library for an hour? It uses $ under the name of a global variable. Again, no magic, just the name of the variable.

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