Analysis of Multiple execution sequence instances of $ (document). ready () _ jquery-js tutorial

This article mainly introduces multiple $ (document ). ready () execution sequence instance analysis for deep understanding $ (document ). the loading and execution sequence of ready () is very helpful. You can refer to the following example to illustrate multiple $ (document ). the execution sequence of ready (). Multiple $ (document) can be seen by the instance ). the execution sequence of ready () is not simply sequential, but also has a certain relationship with the nested hierarchy. The specific instance code is as follows: