How to resolve this ECMA warning?

[binarykitchen]

⚠ Error: [E1004:Warn:ECMA-VERSION-CHECK] The ECMA version used in "index.js" is ES7+, which exceeds the ES5 standard.

Not sure where it's coming from, my project. How do you, in general, tell rsbuild to which ECMA version to compile to?

Does it depend on tsconfig where I have this?

  "compilerOptions": {
    "module": "esnext",
    "moduleResolution": "bundler",
...

[easy1090]

This rule cannot currently determine based on config and browserlist; by default, it reports code that is ECMAScript 5 and above. We will optimize this rule in the future. issue：#532

[Verthon]

Hi @easy1090 I've seen you have optimized this rule here: #532

The .browserslistrc seems to be ignored by RSDoctor I still see the error:

warn    Compile Warning: 
⚠ Error: [E1004:Warn:ECMA-VERSION-CHECK] The ECMA version used in "index.0535d4de.js" is ES6, which exceeds the ES5 standard.

Despite having the fairly new .browserslistrc:

> 5%
not dead

https://browsersl.ist/#q=%3E+5%25%0Anot+dead

Despite having .browserslistrc should we define it manually?

linter: {
        rules: {
          'ecma-version-check': [
            'Warn',
            {
              ecmaVersion: 2015,
              // targets: ["chrome >= 53"],
            },
          ],
        },
      },

Versions:

"@rsbuild/core": "^1.2.16",
"@rsbuild/plugin-react": "^1.1.1",
"@rsdoctor/rspack-plugin": "^0.4.13",

Here is the repo: https://github.com/Verthon/rsdoctor-ecma-script

Thanks.

[easy1090]

@Verthon You need use @rsdoctor/rspack-plugin@1.0, This feature was released on version 1.x.

[Verthon]

Thanks that solves the issue, thanks. Congrats with the new major release, great tool 🎉