Webstorm still reports an error when writing ES6 code after setting up ES6

setting-> Language & Frameworks-> JavaScript-> selecting EcmaScript 6
setting still has no effect? How to break?
Arrow functions, deconstruction assignments, and object method abbreviations all have error prompts.

Webstorm javascript

Dec.20,2021

are you sure it's not eslint's fault?

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There is no prompt for dom operation when webstrom writes js.
1: there is no intelligent prompt for writing js, input document in webstrom. It feels like some plug-in or js library is missing. The details are as follows: ...

Webstorm javascript

Mar.09,2021
When webstorm uses the vue framework to write template, you cannot use this symbol
problem description when webstorm uses the vue frame to write template, you can t use this symbol (the key to the left of the 1 key on the big keyboard). Other computers can use . the environmental background of the problems and what methods you hav...

Vue.js webstorm javascript

Apr.23,2021