主页
JS 参考手册
JavaScript Promise then() 方法
tryjsref_promise_then
运行 ❯
×
更改方向
保存代码
更改主题
<!DOCTYPE html> <html> <body> <h1>JavaScript Promise Object</h1> <h2>The then() Method</h2> <p id="demo"></p> <script> // Create a Promise Object let myPromise = new Promise(function(myResolve, myReject) { let result = false; // Code that might take some time goes here if (result == true) { myResolve("OK"); } else { myReject("Error"); } }); // Using then() myPromise.then(x => myDisplay(x), x => myDisplay(x)); // Funtion to run when Promise is settled: function myDisplay(some) { document.getElementById("demo").innerHTML = some; } </script> </body> </html>