Add a file named .jshintrc to your project and inside this file type this:
{
"esversion": 6
}
As you can see it here:

The full documentation of jshint options are found here: http://jshint.com/docs/options
Add a file named .jshintrc to your project and inside this file type this:
{
"esversion": 6
}
As you can see it here:

The full documentation of jshint options are found here: http://jshint.com/docs/options