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这篇文章将为大家详细讲解有关JavaScript如何实现延时执行，小编觉得挺实用的，因此分享给大家做个参考，希望大家阅读完这篇文章后可以有所收获。

延时执行// 比如 sleep(1000) 意味着等待1000毫秒，还可从 Promise、Generator、Async/Await 等角度实现。

// Promise

const sleep = time => {

return new Promise(resolve => setTimeout(resolve, time));

};

sleep(1000).then(() => {

console.log(1);

});// Generator

function* sleepGenerator(time) {

yield new Promise(function(resolve, reject) {

setTimeout(resolve, time);

});

}

sleepGenerator(1000)

.next()

.value.then(() => {

console.log(1);

});

//async

function sleep(time) {

return new Promise(resolve => setTimeout(resolve, time));

}

async function output() {

let out = await sleep(1000);

console.log(1);

return out;

}

output();

function sleep(callback, time) {

if (typeof callback === "function") {

setTimeout(callback, time);

}

}

function output() {

console.log(1);

}

sleep(output, 1000);关于"JavaScript如何实现延时执行"这篇文章就分享到这里了，希望以上内容可以对大家有一定的帮助，使各位可以学到更多知识，如果觉得文章不错，请把它分享出去让更多的人看到。

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