Javascript Slugify es2015

slugfy.filter.js

angular.module("filters")
    .filter("slugfy", () => text => text.toString()
        .toLowerCase()
        .trim()
        .replace(/\s+/g, "-")           // Replace spaces with -
        .replace(/&/g, "-and-")         // Replace & with 'and'
        .replace(/[^\w\-]+/g, "")       // Remove all non-word chars
        .replace(/\-\-+/g, "-")        // Replace multiple - with single -
    );

slugfy.js

let slugfy = text => text.toString()
        .toLowerCase()
        .trim()
        .replace(/\s+/g, '-')           // Replace spaces with -
        .replace(/&/g, '-and-')         // Replace & with 'and'
        .replace(/[^\w\-]+/g, '')       // Remove all non-word chars
        .replace(/\-\-+/g, '-');        // Replace multiple - with single -