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Overview
The Console is a REPL, which stands for Read, Evaluate, Print, and Loop. It reads the JavaScript that you type into it, evaluates your code, prints out the result of your expression, and then loops back to the first step.
Set up DevTools
This tutorial is designed so that you can open up the demo and try all the workflows yourself. When you physically follow along, you're more likely to remember the workflows later.
Press Command+Option+J (Mac) or Control+Shift+J (Windows, Linux, Chrome OS) to open the Console
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