Benedikt Meurer 9af18c2fd0 perf(core): be more consistent about typeof checks (#28400)
When testing whether `value` is an object, use the ideal sequence of
strictly not equal to `null` followed by `typeof value === 'object'`
consistently. Specifically there's no point in using double equal with
`null` since `undefined` is ruled out by the `typeof` check.

Also avoid the unnecessary ToBoolean check on `value.ngOnDestroy` in
`hasOnDestroy()`, since the `typeof value.ngOnDestroy === 'function'`
will only let closures pass and all closures are truish (with the
notable exception of `document.all`, but that shouldn't be relevant
for the `ngOnDestroy` hook).

PR Close #28400
2019-01-29 11:50:47 -08:00
2019-01-11 11:15:59 -08:00

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