server.js

/**
 * To work out which environment the site is on (dev/staging/live)
 * @module
 * @since  0.0.51
 */
/**
 * Returns true if the code is being executed on a local development server; false otherwise
 * @returns {boolean}
 */
const isDev = () => window.location.href.search(/(http:\/\/|https:\/\/)d51[a-z]+/g) > -1;
/**
 * Returns true if the code is being executed on a staging server; false otherwise
 * @returns {boolean}
 */
const isStaging = () => window.location.href.search(/(http:\/\/|https:\/\/)d51[0-9]+/g) > -1;
/**
 *  Returns true if the code is being executed on a live server; false if it's on a local dev or staging server
 * @returns {boolean}
 */
const isLive = () => !isDev() && !isStaging();
/**
 * Get the prefix of the url identifying the development/staging server.
 * @returns {string} eg: d51alfie.comcar.co.uk --> d51alfie, d5117.comcar.co.uk --> d5117, comcar.co.uk --> [empty string]
 */
const extractDevUrlPrefix = () => {
    let str_dev_url_prefix = '';
    const arr_dev_url_prefix_with_dot = window.location.href.match(/d51[a-z0-9]+($|\.)/g);
    if (arr_dev_url_prefix_with_dot.length) {
        const str_dev_url_prefixWithDot = arr_dev_url_prefix_with_dot[0];
        str_dev_url_prefix = str_dev_url_prefixWithDot.replace(/\./g, '');
    }
    return str_dev_url_prefix;
};
export {
    isDev,
    isStaging,
    isLive,
    extractDevUrlPrefix,
};