get / set / erase cookies (ES6)

cookieLib_ES6.js

export function setCookie(name, value, days) {
    let expires = ''

    if(days) {
        const date = new Date()

        date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000))
        expires = '; expires=' + date.toUTCString()
    }

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

export function getCookie(name) {
    const nameEQ = name + '='
    const ca = document.cookie.split(';')

    for(let i = 0; i < ca.length; i++) {
        let c = ca[i]
        
        while(c.charAt(0) === ' ') {
            c = c.substring(1, c.length)
        }
        
        if(c.indexOf(nameEQ) === 0) {
            return c.substring(nameEQ.length, c.length)
        }
    }

    return null
}

export function eraseCookie(name) {
    document.cookie = name + '=; Max-Age=-99999999;';
}