Javascript Cookie代碼不存儲cookie /讀取空cookie值？

Question

我從Headfirst Javascript書中獲取了此代碼，用於cookie。但由於某種原因，它不適用於我的瀏覽器。我主要使用chrome和ff，並且我在Chrome中啓用了本地Cookie。幫幫我？？

<script type="text/javascript"> 


function checkCookie(){ 
    var name = eatCookie("yahooEmail"); 
    if(name) 
     document.getElementById("emailVerf").style.visibility="hidden"; 
    else 
     document.getElementById("emailBody").style.visibility="hidden"; 
} 



function writeCookie(name, val, days){ 

    var expires = ""; 

    if(days){ 
     var date = new Date(); 
     date.setTime(date.getTime + (days * 24 * 60 * 60 * 1000)); 
     expires = "; expires=" + date.toGMTString(); 
    } 

    document.cookie = name + "=" + val + expires + "; path=/"; 

} 

function eatCookie(val){ 
    var search = val + "="; 
    var cookies = document.cookie.split(';'); 

    for(var i=0; i < cookies.length; i++){ 
     var c = cookies[i]; 
     while(c.charAt(0) == ' ') 
      c=c.substring(1, c.length); 
     if(c.indexOf(search) == 0) 
      return c.substring(search.length, c.length); 
    } 
    return null; 

} 

function verEmail(val){ 

    var regex = "[a-zA-Z0-9][@yahoo.com]"; 
    var exp = new RegExp(regex); 

    if(!exp.test(val)){ 
     document.getElementById("email").style.color="red"; 
     alert("Please enter a valid Yahoo email address."); 
     } 
    else{ 
     writeCookie("yahooEmail", val, 7); 
     document.getElementById("emailVerf").style.visibility="hidden"; 
     document.getElementById("emailBody").style.visibility="visible"; 
     } 
} 

</script> 

Answer 1

你正在編寫一個名爲「ayahooEmail」 Cookie，但在閱讀一個叫「yahooEmail」