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A little signal. Less noise.

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如

如果 React 组件的属性没有传值,它的默认值是什么?

掘金

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在 React 中,组件的 props 没有传值时,默认是 undefined。例如: 此时: 如果你想设置默认值现代 React 推荐直接使用参数默认值: 不传: 相当于: 传入: 则使用:

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Provider: 掘金
Source: juejin-rss
Score: 57.06
Confidence: 54%

Source evidence

What RADAR observed and classified to build this opportunity. It is what the source published, not a verification that the offer is still active.

JuejinObserved: Oct 7, 2026Source reliability: 60%
如果 React 组件的属性没有传值,它的默认值是什么?. 在 React 中,组件的 props 没有传值时,默认是 undefined。例如: 此时: 如果你想设置默认值现代 React 推荐直接使用参数默认值: 不传: 相当于: 传入: 则使用:
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如果 React 组件的属性没有传值,它的默认值是什么?

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