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 'esversion: 6'). 

I think my .jshintrc file is not being read, because I've added this condition.

.jshintrc

{    "esversion": 6  } 

Gruntfile.js

jshint : {   all: ["tests/API/**/*.js"],   options: {     undef: true,     mocha: true,     node: true,     jshintrc: true,     esversion: 6,     globals: {       require: true,       module: true,       console: true,       esversion: 6,       }   },   ui: ["tests/UI/**/*.js"],   options: {     undef: true,     mocha: true,     node: true,     jshintrc: true,     esversion: 6,     globals: {       require: true,       module: true,       console: true,       esversion: 6,       jshintrc: true,     }   } } 

Any idea to solve this problem?

Answer 1

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 2

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