What is this in java script👇👇 $(function

Answer 1

https://osric.com/chris/accidental-developer/2008/04/the-javascript-dollar-sign-function/

Answer 2

$ in JavaScript has no special significance (no more than a or Q anyway).
$ is just a shortcut for jQuery. Take a look at the jquery lesson:
https://www.sololearn.com/Course/jQuery/?ref=app

Answer 3

its the same as document ready function

Answer 4

Thank you