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NOT IN and one NULL
SELECT FROM orders o WHERE o.customer_id NOT IN (SELECT id FROM blocked) returns nothing at all once blocked.id holds a singl…
Where does a read-only list become a snapshot?
List<Int> is a read-only view, not a snapshot. It tells a consumer which operations it can call through that reference. It pr…
The label changed, but did the screen show it?
Promise fulfills. The reaction switches the label from Loading to Calculating. A long synchronous calculation runs. The label…
Keep the submitted name and normalize the lookup key?
Okay, I paste my name and it ends in e followed by U+0301. Next week I type the same name and the keyboard gives me U+00E9. S…
A discriminated union starts after the response check
A type assertion is not a parser. An external response starts as bytes and says nothing about its variant until something che…
