a couple of days ago I had a Javascript exam and the last question was:
When you evaluate the expression {} + [] what do you get?
Errornull0undefined
I've tested in vscode but I can get an answer :(
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Davin Tryon
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Rui Borges
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Open the console in your browser and try it – Matt Burland May 30 '17 at 14:41
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Press F12 in your browser, go to the Console tab, type it in and hit enter. – Alex K. May 30 '17 at 14:41
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And then, just for kicks, try `[] + {}` – Matt Burland May 30 '17 at 14:43
1 Answers
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If you simply open your developer tools and type that expression in, you will see the return value as 0.
Scott Marcus
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