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JavaScript

Posted by Dávid Molnár
Dávid Molnár
27,081 Points

Error in Text Editor. Why can not I use let / const.

"let is available in ES6 (use 'esversion: 6') or Mozilla JS extensions (use moz)."

The same error message with const. Can anyone tell me what am I supposed to do with this error message? Thank you for your answers!

Dávid Molnár
Dávid Molnár
27,081 Points

Edit: none of the ES2015 features are available for me. :(

1 Answer

Jonathan Eastin
Jonathan Eastin
11,570 Points
Jonathan Eastin
Jonathan Eastin
11,570 Points

What editor are you using? Generally JSHint or ESLint will require you to set the esversion you want to use, you would do this at the top of your JavaScript file.

In my case I use VSCode so I have to establish the esversion like so:

// jshint esversion: 6

It may change depending on your editor.

Dávid Molnár
Dávid Molnár
27,081 Points

Dreamweaver and I just downloaded Sublime Text to solve the issue.