如何从cookie中创建和读取值？
如何从cookie中创建和读取值？
提问于 2018-07-24 01:18:13
如何用JavaScript创建和读取cookie中的值？
回答 2
Stack Overflow用户
发布于 2018-07-24 09:27:26
我要添加Dustin Diaz，并将其列为它的第一个自定义JS功能。这是它建议用于获取，设置和删除cookie的内容：
function getCookie(name) {
var start = document.cookie.indexOf(name + "=");
var len = start + name.length + 1;
if ((!start) && (name != document.cookie.substring(0, name.length))) {
return null;
}
if (start == -1) return null;
var end = document.cookie.indexOf(';', len);
if (end == -1) end = document.cookie.length;
return unescape(document.cookie.substring(len, end));
}
function setCookie(name, value, expires, path, domain, secure) {
var today = new Date();
today.setTime(today.getTime());
if (expires) {
expires = expires * 1000 * 60 * 60 * 24;
}
var expires_date = new Date(today.getTime() + (expires));
document.cookie = name + '=' + escape(value) +
((expires) ? ';expires=' + expires_date.toGMTString() : '') + //expires.toGMTString()
((path) ? ';path=' + path : '') +
((domain) ? ';domain=' + domain : '') +
((secure) ? ';secure' : '');
}
function deleteCookie(name, path, domain) {
if (getCookie(name)) document.cookie = name + '=' +
((path) ? ';path=' + path : '') +
((domain) ? ';domain=' + domain : '') +
';expires=Thu, 01-Jan-1970 00:00:01 GMT';
}详情：http://www.dustindiaz.com/top-ten-javascript
Stack Overflow用户
发布于 2018-07-24 10:27:58
以下是可用于创建和检索Cookie的函数。
var createCookie = function(name, value, days) {
var expires;
if (days) {
var date = new Date();
date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
expires = "; expires=" + date.toGMTString();
}
else {
expires = "";
}
document.cookie = name + "=" + value + expires + "; path=/";
}
function getCookie(c_name) {
if (document.cookie.length > 0) {
c_start = document.cookie.indexOf(c_name + "=");
if (c_start != -1) {
c_start = c_start + c_name.length + 1;
c_end = document.cookie.indexOf(";", c_start);
if (c_end == -1) {
c_end = document.cookie.length;
}
return unescape(document.cookie.substring(c_start, c_end));
}
}
return "";
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/-100005651
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