1Add a file named .jshintrc to your project and inside this file type this.
2
3{
4    "esversion": 6
5}
6

1let button = document.createElement('button');
2    button.textContent = 'Like';
3    document.body.appendChild(button);
4    button.addEventListener('click', () => {
5        if (button.textContent === 'Like') {
6            print('Liked!');
7        } else {
8            print('Like');
9        }
10    }); 
11}