Promises are used for asynchronous code. It is a temporary holder for a value that gets returned by an asynchronous call. For example, a call

We can also throw our own errors. This is done with the “throw” keyword using the “new” keyword and the Error method. Here is the

We can add another block to try/catch. This is done with the “finally” keyword. What the finally code block does is run always. So even

The try/catch keywords allow us to handle errors more gracefully. Here is an example… What we are doing here is telling JavaScript to “try” running

Errors happen in code. We need to be able to handle them in our JavaScript code. We also may sometimes wish to throw our own

Once we can grab DOM elements, we can modify them. There are several methods to change DOM elements. If we would like to set the