From f96d1ba391641dde4244d05d2ef6fbb3d6306540 Mon Sep 17 00:00:00 2001 From: Annie_wang Date: Tue, 7 Mar 2023 15:55:24 +0800 Subject: [PATCH] update docs Signed-off-by: Annie_wang --- .../database/database-preference-guidelines.md | 16 +++++++--------- .../reference/apis/js-apis-data-preferences.md | 4 ++-- 2 files changed, 9 insertions(+), 11 deletions(-) diff --git a/en/application-dev/database/database-preference-guidelines.md b/en/application-dev/database/database-preference-guidelines.md index e5c9faa147..724e273675 100644 --- a/en/application-dev/database/database-preference-guidelines.md +++ b/en/application-dev/database/database-preference-guidelines.md @@ -114,21 +114,19 @@ You can use the following APIs to delete a **Preferences** instance or data file ```ts // Obtain the context. import UIAbility from '@ohos.app.ability.UIAbility'; - let context = null; let preferences = null; export default class EntryAbility extends UIAbility { - onWindowStageCreate(windowStage){ - context = this.context; + onWindowStageCreate(windowStage) { + let promise = data_preferences.getPreferences(this.context, 'mystore'); + promise.then((pref) => { + preferences = pref; + }).catch((err) => { + console.info("Failed to get the preferences."); + }) } } - let promise = data_preferences.getPreferences(context, 'mystore'); - promise.then((pref) => { - preferences = pref; - }).catch((err) => { - console.info("Failed to get the preferences."); - }) ``` 3. Write data. diff --git a/en/application-dev/reference/apis/js-apis-data-preferences.md b/en/application-dev/reference/apis/js-apis-data-preferences.md index de22c34d2a..b14256c20d 100644 --- a/en/application-dev/reference/apis/js-apis-data-preferences.md +++ b/en/application-dev/reference/apis/js-apis-data-preferences.md @@ -22,8 +22,8 @@ import data_preferences from '@ohos.data.preferences'; | Name | Type| Readable| Writable| Description | | ---------------- | -------- | ---- | ---- | --------------------------------------- | -| MAX_KEY_LENGTH | number | Yes | No | Maximum length of a key. The key must be less than 80 bytes. | -| MAX_VALUE_LENGTH | number | Yes | No | Maximum length of a value. The value must be less than 8192 bytes.| +| MAX_KEY_LENGTH | number | Yes | No | Maximum length of a key. The maximum key length is 80 bytes. | +| MAX_VALUE_LENGTH | number | Yes | No | Maximum length of a value. The maximum value length is 8192 bytes.| ## data_preferences.getPreferences -- GitLab