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                [`Promise.reject(error)`](http://liubin.github.io/promises-book/#Promise.reject)是和?[`Promise.resolve(value)`](http://liubin.github.io/promises-book/#Promise.resolve)?類似的靜態方法,是?`new Promise()`?方法的快捷方式。 比如?`Promise.reject(new Error("出錯了"))`?就是下面代碼的語法糖形式。 ~~~ new Promise(function(resolve,reject){ reject(new Error("出錯了")); }); ~~~ 這段代碼的功能是調用該promise對象通過then指定的?`onRejected`?函數,并將錯誤(Error)對象傳遞給這個?`onRejected`?函數。 ~~~ Promise.reject(new Error("BOOM!")).catch(function(error){ console.error(error); }); ~~~ 它和[`Promise.resolve(value)`](http://liubin.github.io/promises-book/#Promise.resolve)?的不同之處在于promise內調用的函數是reject而不是resolve,這在編寫測試代碼或者進行debug時,說不定會用得上。
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