Nulls and null checks - How to work safely with nulls in any codebase
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Nulls and null checks - How to work safely with nulls in any codebase
Nulls have been a tricky problem in programming for decades. Tony Hoare, the inventor of the null even called it a billion-dollar mistake. Semantically, nulls are necessary. They represent the absence of a value. For example, a user may fill in a form that has optional fields. They may leave the optional fields blank. That’s one reason for ...
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