20 lines
321 B
JavaScript
20 lines
321 B
JavaScript
// 下面代码的输出结果是什么
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const pro = new Promise((resolve, reject) => {
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resolve();
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})
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.then((res) => {
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console.log(res.toString()); // 报错
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return 2;
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})
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.catch((err) => {
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return 3;
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})
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.then((res) => {
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console.log(res);
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});
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setTimeout(() => {
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console.log(pro);
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}, 1000);
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