[Home](./index.md) > [recogn-parse](./recogn-parse.md) > [Recognizer](./recogn-parse.recognizer.md) > [recognAsync](./recogn-parse.recognizer.recognasync.md) ## Recognizer.recognAsync() method 异步识别 **Signature:** ```typescript recognAsync(target: any, targetOptions?: any, name?: string | null): Promise; ``` ## Parameters

Parameter	Type	Description
target	any	目标
targetOptions	any	_(Optional)_ 目标选项
name	string \| null	_(Optional)_ 鉴定者的名字

**Returns:** Promise<[JudgeInfo](./recogn-parse.judgeinfo.md)\[\]> ## Remarks 只有当最终有识别结果时，才会 resolve，否则，则会 reject。 具体的执行逻辑请看 [Recognizer](./recogn-parse.recognizer.md)