Lint lint lint!

By the way, do you use any tool to connect ESLint to code sections in a Markdown file in order to lint it?

@ryanmcdermott No :) I've just deleted the text before the first and after the last code, then I've replaced all text between code fragments by comment signs like this:

text.replace(
  `/```[\s\S]+?```javascript/`,
  `*******************************************************************************/
/*******************************************************************************`
);

Then I've added the appropriate comment sign in the first and the last lines. And then I've linted and run each fragment uncommentig them one by one)