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February 7, 2018 16:20
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| const user = { | |
| name: 'John', | |
| surname: 'Doe', | |
| address: null, | |
| }; | |
| const userName = user && user.name // John | |
| const address = user && user.address // null | |
| const zipCode = user && user.address && user.address.zipcode // null |
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