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Created August 11, 2015 08:39
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Promise race excute // source https://jsbin.com/baxefi
Raw
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Promise race excute</title>
</head>
<body>
<script id="jsbin-javascript">
// `delay`毫秒后执行resolve
function timerPromisefy(delay) {
return new Promise(function (resolve) {
setTimeout(function () {
resolve(delay);
}, delay);
});
}
// 任何一个promise变为resolve或reject 的话程序就停止运行
Promise.race([
timerPromisefy(1),
timerPromisefy(32),
timerPromisefy(64),
timerPromisefy(128)
]).then(function (value) {
console.log(value); // => 1
});
</script>
<script id="jsbin-source-javascript" type="text/javascript">// `delay`毫秒后执行resolve
function timerPromisefy(delay) {
return new Promise(function (resolve) {
setTimeout(function () {
resolve(delay);
}, delay);
});
}
// 任何一个promise变为resolve或reject 的话程序就停止运行
Promise.race([
timerPromisefy(1),
timerPromisefy(32),
timerPromisefy(64),
timerPromisefy(128)
]).then(function (value) {
console.log(value); // => 1
});</script></body>
</html>
Raw
jsbin.baxefi.js
// `delay`毫秒后执行resolve
function timerPromisefy(delay) {
return new Promise(function (resolve) {
setTimeout(function () {
resolve(delay);
}, delay);
});
}
// 任何一个promise变为resolve或reject 的话程序就停止运行
Promise.race([
timerPromisefy(1),
timerPromisefy(32),
timerPromisefy(64),
timerPromisefy(128)
]).then(function (value) {
console.log(value); // => 1
});
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