WeChat Mini Program: New data management API-Mini Program Development-php.cn

WeChat Mini Program: New data management API

高洛峰

Release： 2018-05-15 13:53:19

Original

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wx.getStorage(OBJECT)

Asynchronously obtain the content corresponding to the specified key from the local cache.
OBJECT parameter description:
[tr]Parameter type required description[/tr]

##failFunctionNo Callback function for interface call failurecompleteFunctionNoCallback function for end of interface call Function (executed successfully or failed)

key	String	is the specified key in the	local cache
success	Function	It is the callback function called by the	interface, res = {data: the content corresponding to key}

Sample code:

wx.getStorage({
    key: &#39;key&#39;,
    success: function(res) {
        console.log(res.data)
    }
}) wx.getStorageSync(KEY)

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Synchronously obtain the specified specification from the local cache The content corresponding to key.

Parameter description: [tr]Parameter type required description[/tr]

keyString is the specified key in the local cache

##Sample code:

try {
    var value = wx.getStorageSync(&#39;key&#39;) if (value) {
        // Do something with return value
    }
} catch(e) {
    // Do something when catch error
}
wx.getStorageInfo(OBJECT)

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Asynchronously obtain relevant information about the current storage

OBJECT parameter description:
[tr]Parameter type required description[/tr]

successfailcomplete

Function	is the callback function called by the	interface. For details, please see the return parameter description
Function	No	Callback function for failed interface call
Function	No	The callback function at the end of the interface call (will be executed if the call is successful or failed)

success return parameter description ：

[tr]Parameter type description[/tr]

keyscurrentSizelimitSize

String Array	In current storage All keys
Number	The size of the space currently occupied, unit kb
Number	Limited space size, unit kb

Sample code:

wx.getStorageInfo({
    success: function(res) {
        console.log(res.keys);
        console.log(res.currentSize);
        console.log(res.limitSize);
    }
})###wx.getStorageInfoSync同步获取当前storage的相关信息 * *示例代码： * *"javascript
try {
    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)

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Asynchronously remove the specified key from the local cache.

OBJECT parameter description:
[tr]Parameter type required description[/tr]

keysuccessfailcomplete

String	is the specified key in the	local cache
Function	Yes	The callback function called by the interface
Function	No	The callback function called by the interface fails Function
Function	No	The callback function at the end of the interface call (will be executed if the call is successful or failed)

Sample code:

wx.removeStorage({
    key: &#39;key&#39;,
    success: function(res) {
        console.log(res.data)
    }
}) wx.removeStorageSync(KEY)

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Synchronously remove the specified key from the local cache.

Parameter description:
[tr]Parameter type required description[/tr]

key

String

is the specified key in the

local cache

Sample code:

try {
    wx.removeStorageSync(&#39;key&#39;)
} catch(e) {
    // Do something when catch error
}

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