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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ~~~ promise.then(onFulfilled, onRejected); ~~~ then代碼示例 ~~~ var promise = new Promise(function(resolve, reject){ resolve("傳遞給then的值"); }); promise.then(function (value) { console.log(value); }, function (error) { console.error(error); }); ~~~ 這段代碼創建一個promise對象,定義了處理onFulfilled和onRejected的函數(handler),然后返回這個promise對象。 這個promise對象會在變為resolve或者reject的時候分別調用相應注冊的回調函數。 * 當handler返回一個正常值的時候,這個值會傳遞給promise對象的onFulfilled方法。 * 定義的handler中產生異常的時候,這個值則會傳遞給promise對象的onRejected方法。
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