It even autocompletes variable and property names
pic.twitter.com/4nLwsCPNGu
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What if you're constructing a command that deletes the test database but you started out by pasting in some code that included the prod database name? This is why we have controls, of course, but I'm just thinking this could do things you didn't want done. How is that handled?
Like in ChromeDevTools, only pure expressions are evaluated in advance.
Does it do let declaration yet?
Yeah, per @nimODota it uses REPL mode 
I'm wondering, how often do people use the REPL? Last 3 times I've used it was accidentally. Hmm, maybe it's time I use it in favor of the Chrome console.
Nearly every day when I need to refactor some small piece of code and see if it's actually an equivalent.
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