diff --git a/en/application-dev/reference/apis/js-apis-inputdevice.md b/en/application-dev/reference/apis/js-apis-inputdevice.md
index 7cea07b73865d69ea13301f047f9ecc455d9552e..c47a977b1f2b1559488b6f6602a6ed116ad88197 100644
--- a/en/application-dev/reference/apis/js-apis-inputdevice.md
+++ b/en/application-dev/reference/apis/js-apis-inputdevice.md
@@ -104,7 +104,7 @@ inputDevice.getDeviceIds((ids)=>{
 
 ## inputDevice.getDeviceIds
 
-function getDeviceIds(): Promise<<Array<number>>
+getDeviceIds(): Promise<Array<number>>
 
 Obtains the IDs of all input devices. This API uses a promise to return the result.
 
@@ -150,7 +150,7 @@ inputDevice.getDevice(1, (inputDevice)=>{
 
 ## inputDevice.getDevice
 
-function getDevice(deviceId: number): Promise<InputDeviceData>
+getDevice(deviceId: number): Promise<InputDeviceData>
 
 Obtains information about an input device. This API uses a promise to return the result.