[英]How to read cookie value with javascript?
<script type="text/javascript">
function WorldwideSellingModelCookie(){
days=7;
myDate = new Date();
myDate.setTime(myDate.getTime()+(days*24*60*60*1000));
document.cookie = 'WorldwideSellingModelCookie=Accepted; expires=' + myDate.toGMTString();
}
function CheckCookies(){
var worldwideSellingCookie = getCookie("WorldwideSellingModelCookie");
if (worldwideSellingCookie == "Accepted")
{
jQuery(".alert-worldwide").hide();
}
}
CheckCookies();
</script>
你好
正在創建cookie,我只是不確定如何使我的if語句在CheckCookies函數中起作用,以便在頁面上隱藏div?
我收到以下控制台錯誤:
未捕獲的ReferenceError:未定義getCookie
誰能告訴我我在做什么錯?
謝謝
更新:
<script type="text/javascript">
function WorldwideSellingModelCookie(){
days=7;
myDate = new Date();
myDate.setTime(myDate.getTime()+(days*24*60*60*1000));
document.cookie = 'WorldwideSellingModelCookie=Accepted; expires=' + myDate.toGMTString();
}
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 CheckCookies(){
var worldwideSellingCookie = getCookie("WorldwideSellingModelCookie");
if (worldwideSellingCookie == "Accepted")
{
jQuery(".alert-worldwide").hide();
}
}
CheckCookies();
</script>
剛剛添加了檢查Cookie的功能,現在似乎可以正常使用了,但是div在隱藏之前會出現一秒鍾。 有什么辦法可以阻止這種情況的發生?
這些是我用來在JavaScript中添加,獲取或清除Cookie的功能。
/* function creates cooke with random key */
function setCookie(inputs) {
/* cookie name */
var name = (inputs[0]) ? inputs[0] : "key" + document.cookie.length;
/* cookie expire in 120 seconds */
var date = new Date();
date.setTime(date.getTime() + (120 * 1000));
var expires = "; expires=" + date.toGMTString();
/* sets cookie */
document.cookie = name + "=" + inputs[1] + expires;
};
/* get the cookie based on input */
function getCookie(input) {
var cookies = document.cookie.split(';');
for (var i = 0; i < cookies.length; i++) {
var name = cookies[i].split('=')[0].toLowerCase();
var value = cookies[i].split('=')[1].toLowerCase();
if (name === input) {
return value;
} else if (value === input) {
return name;
}
}
return "";
};
/* destroy me cookies (well only delete javascript cookies) */
function clearCookies(elements) {
var cookies = document.cookie.split(';');
for (var i = 0; i < cookies.length; i++) {
var cookie = cookies[i];
var eqPos = cookie.indexOf('=');
var name = eqPos > -1 ? cookie.substr(0, eqPos) : cookie;
document.cookie = name + "=;expires=Thu, 01 Jan 1970 00:00:00 GMT";
}
$(elements[0]).val('');
$(elements[1]).val('');
$(elements[2]).val('');
$(elements[3]).html('No Cookie');
};
這也是一個很好的Document.cookie MDN
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