Ana*_*dis -1 javascript promise when-js
有人可以解释为什么这个以相反的顺序打印?
码:
when('test')
.then(function() {console.log('should be first');})
.then(console.log('should be second'));
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输出:
should be second
should be first
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PS:我使用的是when.js版本:when@3.4.3
您将立即执行第二个console.log,并将返回值传递给then.你需要传递函数then.
你有效地做到了这一点:
var x = console.log('should be second')
when('test')
.then(function () { console.log('should be first'); })
.then(x);
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