如何将JavaScript值传递给Cookie

Question

我正在尝试将JavaScript值传递给cookie，但是代码仅将[object HTMLInputElement]值传递给cookie，我在做什么错？

var M=document.getElementById('a');

//   counts <span> elements
var N=M.getElementsByTagName('Span');

var largo = N.length;


var myData = Array();
for (var i = 0; i < N.length; i++) {
    myData[i]=N[i].innerHTML;
}


function setCookie(cname, cvalue, exdays) {
var d = new Date();
d.setTime(d.getTime() + (exdays*24*60*60*1000));
var expires = "expires="+d.toUTCString();
document.cookie = cname + "=" + cvalue + "; " + expires;
}

function getCookie(cname) {
var name = cname + "=";
var ca = document.cookie.split(';');
for(var i=0; i<ca.length; i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1);
    if (c.indexOf(name) == 0) return c.substring(name.length, c.length);
}
return "";
}

function checkCookie() {
setCookie("chords", myDATA, 365);
}

此代码从元素中获取所有和弦，我需要将所有这些和弦存储到Cookie中

Answer 1

据我所知，您正在尝试显示cookie中的span元素值，而不是[object HTMLSpanElement]

因此，如果您检查我的小提琴，它将显示它返回cookie内的span元素的值。

JSFIDDLE

function checkCookie() 
{
    for (var i = 0; i < N.length; i++) 
    {
        myData[i] = N[i].innerHTML;
    }

    if (getCookie("chords"))
    {
        console.log(" COOKIE EXISTS ");
    }
    else
    {
       console.log(" COOKIE DOESN'T EXISTS ");
       setCookie("chords", myData, 365);  
    }
}