如何將javascript值傳遞給cookie

Question

我試圖將javascript值傳遞給cookie，但代碼只將[object HTMLInputElement]值傳遞給cookie，我做錯了什麼？

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); 
} 

這個代碼得到所有的和絃從元素，我需要所有這些弦存入餅乾

Answer 1

據我所知，你想在cookie中展現span元素值，而不是[object HTMLSpanElement]

因此，如果您檢查我的小提琴，它將顯示它返回餅乾內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); 
    } 
}