What is undefined in TypeScript?

What is undefined 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: easy

标签: interviewbit, typescript, topic-specific, javascript

参考答案摘要

When a variable is declared without initialization, it’s assigned the undefined value. It’s not very useful on its own. A variable is undefined if it’s declared, but no value has been assigned to it. ...

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