WeChat applet: New Data Management API

New Minor Program version 1028: New Data Management API, wx. getStorage (OBJECT)

Asynchronously retrieves the content of a specified key from the local cache.
OBJECT parameter description:
[Tr] parameter type required description [/tr]

Key	String	Yes	The specified key in the local cache.
Success	Function	Yes	Callback function called by the API, res = {content corresponding to data: key}
Fail	Function	No	Callback function for interface call failure
Complete	Function	No	The callback function after the interface call ends. (the callback function is executed if the call succeeds or fails)

Sample code:

wx.getStorage({    key: 'key',    success: function(res) {        console.log(res.data)    }}) wx.getStorageSync(KEY)

Synchronously obtains the content of the specified key from the local cache.
Parameter description:
[Tr] parameter type required description [/tr]

Key

String

Yes

The specified key in the local cache.

Sample code:

try {    var value = wx.getStorageSync('key') if (value) {        // Do something with return value    }} catch(e) {    // Do something when catch error}wx.getStorageInfo(OBJECT)

Asynchronously obtains information about the current storage.
OBJECT parameter description:
[Tr] parameter type required description [/tr]

Success	Function	Yes	The callback function called by the API. for details, refer to the return parameter description.
Fail	Function	No	Callback function for interface call failure
Complete	Function	No	The callback function after the interface call ends. (the callback function is executed if the call succeeds or fails)

Success return parameters:
[Tr] parameter type description [/tr]

Keys	String Array	All keys in the current storage
CurrentSize	Number	Size of the space currently occupied, in kb
LimitSize	Number	The size of the restricted space, in kb.

Sample code:

Wx. getStorageInfo ({success: function (res) {console. log (res. keys); console. log (res. currentSize); console. log (res. limitSize) ;}}) ### wx. getStorageInfoSync synchronously obtains information about the current storage. ** sample code: ** "javascripttry {var res = wx. getStorageInfoSync (); console. log (res. keys); console. log (res. currentSize); console. log (res. limitSize);} catch (e) {// Do something when catch error} wx. removeStorage (OBJECT)

Asynchronously removes the specified key from the local cache.
OBJECT parameter description:
[Tr] parameter type required description [/tr]

Key	String	Yes	The specified key in the local cache.
Success	Function	Yes	Callback function called by the API
Fail	Function	No	Callback function for interface call failure
Complete	Function	No	The callback function after the interface call ends. (the callback function is executed if the call succeeds or fails)

Sample code:

wx.removeStorage({    key: 'key',    success: function(res) {        console.log(res.data)    }}) wx.removeStorageSync(KEY)

Synchronously remove a specified key from the local cache.
Parameter description:
[Tr] parameter type required description [/tr]

Key

String

Yes

The specified key in the local cache.

Sample code:

try {    wx.removeStorageSync('key')} catch(e) {    // Do something when catch error}

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