export default和export

https://blog.csdn.net/Thekingyu/article/details/80713354

1. When ①import imported function inside the js file directly from the individual name, and then use the alias method on it.
2. ② direct representation braces
   
3. Global reference in main.js added directly
   
   
   used, then it: like this: this.commonMap.initMap ()

This is what I wrote before another global js:

There 2.eslint Default Default export export default {}.
A document which can have a default, but can have multiple Export.
* May be understood as a default target