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what is T in var v, ok T = a[x]? isn't ok must be bool?

Kokizzu
– Kokizzu

2017-05-12 04:31:43 +00:00
Commented May 12, 2017 at 4:31
3

@Kokizzu That's the general form of the variable declaration. At first we might think it would only work (compile) if the map would be of type map[bool]bool and T is bool, but it also works if map is of type map[interface{}]bool and T is interface{}; moreover it also works with custom types having bool as underlying type, see all on the Go Playground. So since that form is valid with multiple types substituted for T, that's why the general T is used. Type of ok can be anything to which an untyped bool can be assigned.

icza
– icza

2017-05-12 07:53:50 +00:00
Commented May 12, 2017 at 7:53

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