How to access a nested property, in a safe way (i.e. without throwing a TypeError)
(a.b) ? a.b.c : undefined
Is there a less verbose way, without using a framework ?
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4Is there a less verbose way using a framework? – baao Oct 23 '15 at 20:23
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1Something like `a && a.b && a.b.c`? Not sure that counts as less verbose. But that will evaluate to `undefined` if `a`, `a.b` or `a.b.c` are undefined. Otherwise it'll evaluate to whatever `a.b.c` contains. – Matt Burland Oct 23 '15 at 20:24
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1@MattBurland: I think that's the "verbose" way the OP is trying to avoid. – gen_Eric Oct 23 '15 at 20:24
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1@RocketHazmat: since they were using the ternary operator, I thought they were thinking along the lines of `a ? a.b ? a.b.c : undefined : undefined` which I think is a lot harder to read. – Matt Burland Oct 23 '15 at 20:26
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In this particular case you can just do `a.b && a.b.c`. – JJJ Oct 23 '15 at 20:28
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2https://github.com/letsgetrandy/brototype – m59 Oct 23 '15 at 20:28
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1@m59: That's amazing! – gen_Eric Oct 23 '15 at 21:59