They are quite handy when you need to get a property nested in an object, like let foo = obj && obj.child && obj.child.foo || "", especially when a default fallback value is needed.
But when it's used as a condition, it's a bit annoying and IMO much less readable at first glance.
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They are quite handy when you need to get a property nested in an object, like
let foo = obj && obj.child && obj.child.foo || ""
, especially when a default fallback value is needed.But when it's used as a condition, it's a bit annoying and IMO much less readable at first glance.