From 8c6ee1d2a1c3c37260e6f3a4a5064b4a403a1fad Mon Sep 17 00:00:00 2001
From: liangjunhao <liangjunhao10@huawei.com>
Date: Mon, 26 Jun 2023 14:30:20 +0000
Subject: [PATCH] docs: add isStandby

Signed-off-by: liangjunhao <liangjunhao10@huawei.com>
---
 .../reference/apis/js-apis-power.md           | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/zh-cn/application-dev/reference/apis/js-apis-power.md b/zh-cn/application-dev/reference/apis/js-apis-power.md
index 584df2eb86..176a4548a2 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-power.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-power.md
@@ -296,6 +296,39 @@ power.setPowerMode(power.DevicePowerMode.MODE_PERFORMANCE)
 });
 ```
 
+## power.isStandby<sup>10+</sup>
+
+isStandby(): boolean
+
+检测当前设备是否进入待机低功耗续航模式。
+
+**系统能力：** SystemCapability.PowerManager.PowerManager.Core
+
+**返回值：**
+
+| 类型                | 说明                                   |
+| ------------------- | -------------------------------------- |
+| boolean | 进入待机模式返回true，否则返回false。 |
+
+**错误码：**
+
+以下错误码的详细介绍请参见[系统电源管理错误码](../errorcodes/errorcode-power.md)。
+
+| 错误码ID   | 错误信息    |
+|---------|---------|
+| 4900101 | If connecting to the service failed. |
+
+**示例：**
+
+```js
+try {
+    var isStandby = power.isStandby();
+    console.info('device is in standby: ' + isStandby);
+} catch(err) {
+    console.error('check isStandby failed, err: ' + err);
+}
+```
+
 ## power.rebootDevice<sup>(deprecated)</sup>
 
 rebootDevice(reason: string): void
-- 
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