template-literals.md

ECMAScript 6 has a feature called Template Strings. Basically, it allows

`foo ${bar} string`

to be used instead of

'foo' + bar + 'string'

concatenation.

It also allows for multi-line strings in javascript without escaping, which is great for templates:

return `
    <div class="${foo}">
         ...
    </div>
`;

source: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals