# SelectorQuery NodesRef.context(function callback)

Start from base library version 2.4.2. Please remaining backward compatible.

with Promise style call: Not supported

Mini Program plugin: Support

Add node Context Object query request. Current support VideoContext、CanvasContext、LivePlayerContext、EditorContextand MapContext The acquisition of.

# parameter

# function callback

Callback function, before executing SelectorQuery.exec Method, returns node information.

# parameter

# Object res

# Return value

# SelectorQuery

# sample code

Page({
  getContext () {
    wx.createSelectorQuery().select('.the-video-class').context(function(res){
      console.log(res.context) // Node corresponding Context Object. For example: the selected node is <video> Component, this is where we return VideoContext object
    }).exec()
  }
})