$ is not a function - jQuery error

Question

I have the jQuery loaded fine, I\'ve quadruple-checked, though I\'m getting this error in FireBug \"$ is not a function\" and my code doesn\'t work.

Here\'s my code:

Answer 1

There are quite lots of answer based on situation.

1) Try to replace '$' with "jQuery"

2) Check that code you are executed are always below the main jquery script.

3) Pass $ into the function and add "jQuery" as a main function like below.