arrow function syntax (=>)' is only available in ES6 (use 'esversion: 6')

Question

Currently I\'m running my tests with protractor/grunt but I\'m getting the follow error message:

\'arrow function syntax (=>)\' is only available in ES6 (use          


        

Answer 1

I have this problem after I installed JSHint. The process for me to solve this problem as below: Preference -> setting -> Extensions -> JSHint Configuration -> options -> add "jshint.options": {"esversion": 6} Done.

Answer 2

Add the following into your package.json:

"jshintConfig": {
  "esversion": 6
}

Answer 3

I was able to resolve this issue by adding this block of code at the top of each file.js that accused the error

/*jshint esversion: 6 */

Example:

Answer 4

It is not possible to add /*jshint esversion: 6 */ in each file.js file.

Instead of above, please do below changes if you are using Visual Studio Code: -

1. Open Visual Studio Code
2. File -> Preferences -> Settings
3. Default User Settings -> JSHint configuration
4. look for "jshint.options": {},
5. change it to "jshint.options": {"esversion": 6}, by clicking on Edit on the left

Answer 5

You can do more project-specific settings by following these steps.

1. Create a folder with the name of .vscode at the root of your project directory
2. Create a file with the name settings.json
3. Add the following content into it.

{
  "jshint.options": {
    "esversion": 6
  }
}

You can add some more settings to keep things consistents across your team.

{
    "editor.tabSize": 2,
    "editor.formatOnSave": true,
    "editor.formatOnType": true, 
    "jshint.options": {
        "esversion": 6
    }
}