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452 B
452 B
面试题
20180321面试题
console.log(1);
setTimeout(function () {
console.log(2);
}, 1000);
setTimeout(function () {
console.log(3);
}, 0);
console.log(4);
20180321面试题
var arr = [1, 2, 3];
for (var i = 0; i < arr.length; i++) {
setTimeout(function () {
console.log(i);
}, 0);
}
打印结果:3,3,3