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53. 承诺的三种状态是什么 #70

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webVueBlog opened this issue Jun 9, 2022 · 0 comments
Open

53. 承诺的三种状态是什么 #70

webVueBlog opened this issue Jun 9, 2022 · 0 comments
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深入理解JS核心技术

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Promise 具有三种状态：

Pending：这是 Promise 在操作开始之前的初始状态
已完成：此状态表示指定的操作已完成。
已拒绝：此状态表示操作未完成。在这种情况下，将抛出错误值。
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