Javascript Cookie Helper

cookieHelper.js

// Cookie helper functions
const CookieHelper = {
    /**
      * Set Cookie.
      *
      * @param {string} name
      * @param {string} value
      * @param {string} minutes
      */
    setCookie( name, value, minutes ) {
        let expires = '';

        if ( minutes ) {
            const now = new Date();
            expires = '; expires=' + new Date(now.getTime() + minutes * 60000);
        }

        document.cookie = name + '=' + ( value || '' ) + expires + ';';
    },

    /**
      * Get Cookie.
      *
      * @param {string} name
      * @return {string} null
      */
    getCookie( name ) {
        const cookies = document.cookie.split( ';' );

        for ( const cookie of cookies ) {
            if ( -1 < cookie.indexOf( name + '=' ) ) {
                return cookie.split( '=' )[ 1 ];
            }
        }

        return null;
    },

    /**
      * Delete Cookie.
      *
      * @param {string} name
      * @return {string} null
      */
    deleteCookie( name ) {
        document.cookie = name + "=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=/;";
    },
};