Create array in cookie with javascript

Question

Is it possible to create a cookie using arrays?

I would like to store a[0]=\'peter\', a[\'1\']=\'esther\', a[\'2\']=\'john\' i

Answer 1

You can save a lot of data within a single cookie and return it as an array, try this

  function setCookie(cookieKey, cookieValue) {
        var cookie = document.cookie.replace(/(?:(?:^|.*;\s*)idpurchase\s*\=\s*([^;]*).*$)|^.*$/, "$1")
        var idPurchase = cookie.split(",")
        idPurchase.push(cookieValue)
        document.cookie = cookieKey+"=" + idPurchase
        console.log("Id das compras efetuadas :",idPurchase)
        $("#purchases_ids option:last").after($(''+cookieValue+''))
    }
    checkCookie()
    function checkCookie() {
        var cookie = document.cookie.replace(/(?:(?:^|.*;\s*)idpurchase\s*\=\s*([^;]*).*$)|^.*$/, "$1")
        var idPurchase = cookie.split(",")
        console.log("Id das compras efetuadas :",idPurchase)
        for (i = 1; i < idPurchase.length; i++) {
        $("#purchases_ids option:last").after($(''+idPurchase[i]+''))
        }
        purchases_ids.addEventListener("change",changeSpeed)
    }

in this project that I created I store values ​​in arrays, codePen is not allowing the storage of cookies, but in the example below you can get a complete picture, just study the implementation

Github project

Open in Gitpod