Small micro-channel program data cache

Small micro-channel program data cache

Micro-channel official document describes link: https://developers.weixin.qq.com/miniprogram/dev/api/storage/wx.getStorage.html

 

• And comparing the browser cache

  • Browser:  

    • localstorage (unless you manually cleared, or permanently stored locally)

    • sessionstorage (valid only in the current session, close the browser page or after clearing)  

  • Applets

    • storage

• Role: is used to cache data

• use:

  • storage

    • Asynchronous memory

      wx.setStorage({
        key: '',
        data: ''
      })

    • Synchronous storage

      wx.setStorageSync(key, data)

  • The value

    • Asynchronous Value

      wx.getStorage({
        key: '',
        success: res => {
          console.log(res.data)
       }
      })

    • Synchronization values

      let res = wx.getStorageSync(key)

  • Remove

    • Asynchronous Clear

      // clear the contents of the specified key in 
      wx.removeStorage ({ 
        key: '', 
       Success: RES => { the console.log (res.data) } }) // clear all Storage wx.clearStorage ()
        
      
      
      
      

    • Synchronous Clear

      // Clear contents of the specified key in 
      wx.removeStorageSync (key) 
      // remove all Storage 
      wx.clearStorageSync ()

  • to sum up:

    • localstorage user applet storage with the browser similar, can understand the argument

    • note:

      • localstorage can only store strings

      • You may be stored in any type of data object storage array ,,, like.