Each tutorial comes as a video that explains ... The University of Pennsylvania also offers a free course for JavaScript on edX. Unlike other courses, this one expects you to have an understanding ...

Thau's JavaScript Tutorial. There’s a lot you can do with JavaScript: Images can swap when you move a mouse over them, form elements can influence each other on the fly, ...

If you write JavaScript, you have probably used higher-order functions and not even noticed. If you have ever replaced a for loop with an array method, you’ve used higher-order functions.