What specifically needs to be written in the Nuxt config so that it generates ES5-compliant code (with 'var' instead of 'let' and 'const')?

Question

Vue.js

Nowhere can I find an answer to the question:
- What exactly should be written in the Nuxt config so that it generates ES5-compatible code (with 'var' instead of 'let' and 'const')?
Somebody knows? Tell me please.

Answer 1

https://medium.com/@zural143/basic-webpack-4-and-e...

Answer 2

The problem was in Quasar connected as a plugin.
Here is the solution from Kirill Romanov

build: {
    transpile: [
      'quasar',
    ],
}

checked - everything plows !!))