Why doesn't a Jquery code work outside a function?

Question

I had a code ($(#AnId).text("text")) outside of a function but it didn't work, instead it gave an error ($ is not defined)

Answer 1

The reason is you try to add text to a DOM before it exists.

Wrap your codes in:

$(document).ready(function() {
... your codes...
});

or short-handed:

$(function() {
... your codes...
}) ;

https://www.sololearn.com/learn/jQuery/2785/