Eslint disable strict mode when using babel parser

Question

I'm using eslint in order to check valid JavaScript in a React project. However, I encountered an issue when I use --rule 'strict: 0' and --parser=babel-eslint in the same time. By example:

Eslint without babel parser:

eslint --no-eslintrc file.js

Displays no output because it doesn't find error.

Eslint with babel-parser:

eslint --no-eslintrc --parser=babel-eslint file.js

Displays this error:

file.js
1:1  error  Parsing error: Octal literal in strict mode
> 39 |  language.french.value           = ' caract\350res';

I tried to disable strict mode with --rule 'strict: 0' but it fails. I get still the precedent error.

Do you know a way to disable strict mode by using babel-parser ?

Answer 1

I've just run into the same issue, finally found an answer on github. You can turn off the global strict mode by changing the sourceType to script within your .eslintrc file:

{
  ...
  parser: 'babel-eslint',
  parserOptions: {
    sourceType: 'script'
  }
  ...
}

Or, if you want to set this through the cli then simply:

eslint --no-eslintrc --parser=babel-eslint --parser-options=sourceType:script file.js