Explain how optional chaining works in TypeScript.

Explain how optional chaining works in TypeScript.

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: hard

标签: interviewbit, typescript, topic-specific, javascript

参考答案摘要

Optional chaining allows you to access properties and call methods on them in a chain-like fashion. You can do this using the ‘?.’ operator. TypeScript immediately stops running some expression if it ...

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