What does double question mark mean in flutter? – Enpatika
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What does double question mark mean in flutter?

What does double question mark mean in flutter?

1 April 2022 Enpatika.com Genel

double question mark operator means “if null “. Take the following expression, for example. String a = b ?? ‘hello’; This means a equals b , but if b is null then a equals ‘hello’ .4 Oca 2019

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