js操作获取和设置cookie

Posted 2022-09-27

//创建cookie

function setCookie(name, value, expires, path, domain, secure) 

    var cookieText = encodeURIComponent(name) + ‘=‘ + encodeURIComponent(value);

    if (expires instanceof Date) 

        cookieText += ‘; expires=‘ + expires;

    if (path) 

        cookieText += ‘; expires=‘ + expires;

    if (domain) 

        cookieText += ‘; domain=‘ + domain;

    if (secure) 

        cookieText += ‘; secure‘;

    document.cookie = cookieText;

//获取cookie

function getCookie(name) 

    var cookieName = encodeURIComponent(name) + ‘=‘;

    var cookieStart = document.cookie.indexOf(cookieName);

    var cookieValue = null;

    if (cookieStart > -1) 

        var cookieEnd = document.cookie.indexOf(‘;‘, cookieStart);

        if (cookieEnd == -1) 

            cookieEnd = document.cookie.length;

        cookieValue = decodeURIComponent(document.cookie.substring(cookieStart + cookieName.length, cookieEnd));

    return cookieValue;

//删除cookie

function unsetCookie(name) 

    document.cookie = name + "= ; expires=" + new Date(0);

原文地址：https://github.com/hawx1993/Front-end-Interview-questions