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August 11, 2015 08:39
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This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -0,0 +1,48 @@ <!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> This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -0,0 +1,17 @@ // `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 });