20 lines
368 B
JavaScript
20 lines
368 B
JavaScript
// 下面的代码输出什么
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const promise1 = new Promise((resolve, reject) => {
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setTimeout(() => {
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reject();
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}, 1000);
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});
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const promise2 = promise1.catch(() => {
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return 2;
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});
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console.log('promise1', promise1);
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console.log('promise2', promise2);
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setTimeout(() => {
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console.log('promise1', promise1);
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console.log('promise2', promise2);
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}, 2000);
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