$ symbol in Js.

Question

Whats the $ sign used for in Js.. is is some sort of special sign?

Answer 1

It's used when you are using jquery in your code.
#check the sololearn lesson for more info.
https://www.sololearn.com/Course/jQuery/
#jquery selectors lesson link
https://www.sololearn.com/learn/jQuery/2790/

Answer 2

$ is also used in ecma2016 for making a string from variable's names. useful in templates.