Applet - API

1 Applet API summary

In the applet API Is provided by the host environment , Through these rich applets API, Developers can easily call the capabilities provided by wechat , for example ： Get user information 、 The local store 、 Payment function, etc .

2 Applet API Of 3 Big classification

Small program official API It is divided into the following 3 Categories: ：

1. Event monitoring API

    characteristic ： With  on  start , Used to monitor the trigger of some events 
    give an example ：wx.onWindowResize(function callback)  Listen for window size changes 
   

2. Sync API

    characteristic 1： With  Sync  At the end of the  API  It's all synchronous  API
    characteristic 2： Sync  API  The results of the implementation of , You can get directly through the return value of the function , If the execution fails, an exception will be thrown 
    give an example ：wx.setStorageSync('key', 'value')  Write content to local storage 
   

3. asynchronous API

    characteristic ： Be similar to  jQuery  Medium  $.ajax(options)  function , Need to pass through  success、fail、complete  Receive the result of the call 
    give an example ：wx.request()  Initiate a network data request , adopt  success  The callback function receives data