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?. meaning typescript

Kamran Taghaddos answered on August 15, 2022 Popularity 9/10 Helpfulness 2/10

answer ?. meaning typescript

?. meaning typescript

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Yes. As of TypeScript 3.7 (released on November 5, 2019), this feature is supported and is called Optional Chaining:

At its core, optional chaining lets us write code where TypeScript can immediately stop running some expressions if we run into a null or undefined. The star of the show in optional chaining is the new ?. operator for optional property accesses.

The accessor variant of the existential operator ?. can be used to soak up null references in a chain of properties. Use it instead of the dot accessor . in cases where the base value may be null or undefined.

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Contributed on Aug 15 2022

Kamran Taghaddos

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?. meaning typescript

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