Shocked! Encapsulates a component. What you get is an empty array using wx. createSelectorQuery(). selectAll(). boundingClientRect()!?

The solution was unexpected, which made me feel sad. When I learned it, I gasped and could not speak on the spot!

In the component, add .in(this) that will do

 const query = wx.createSelectorQuery().in(this); query.selectAll(".area-item").boundingClientRect((rect) => { console.log(rect); }).exec();