This article example describes the method of recording guest names based on cookies by JS. Share it for your reference, as follows:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Unt titled document</title><script language="JavaScript"><!-- Beginvar expDays = 30;var exp = new Date();exp.setTime(exp.getTime() + (expDays*24*60*60*1000));function Who(info){var VisitorName = GetCookie('VisitorName')if (VisitorName == null) {VisitorName = prompt("Your honored name:");SetCookie ('VisitorName', VisitorName, exp);}return VisitorName;}function When(info){var rightNow = new Date()var WWHTime = 0;WWHTime = GetCookie('WWhenH')WWHTime = WWHTime * 1var lastHereFormatting = new Date(WWHTime);var intLastVisit = (lastHereFormatting.getYear() * 10000)+(lastHereFormatting.getMonth() * 100) + lastHereFormatting.getDate()var lastHereInDateFormat = "" + lastHereFormatting;var dayOfWeek = lastHereInDateFormat.substring(0,3)var dateMonth = lastHereInDateFormat.substring(4,11)var timeOfDay = lastHereInDateFormat.substring(11,16)var year = lastHereInDateFormat.substring(23,25)var WWHText = dayOfWeek + ", " + dateMonth + " at " + timeOfDaySetCookie ("WWhenH", rightNow.getTime(), exp)return WWHText}function Count(info){var WWHCount = GetCookie('WWHCount')if (WWHCount == null) {WWHCount = 0;}else{WWHCount++;}SetCookie ('WWHCount', WWHCount, exp);return WWHCount;}function set(){VisitorName = prompt("Who are you?");SetCookie ('VisitorName', VisitorName, exp);SetCookie ('WWHCount', 0, exp);SetCookie ('WWhenH', 0, exp);}function getCookieVal (offset) {var endstr = document.cookie.indexOf (";", offset);if (endstr == -1)endstr = document.cookie.length;return unescape(document.cookie.substring(offset, endstr));}function GetCookie (name) {var arg = name + "=";var alen = arg.length;var clen = document.cookie.length;var i = 0;while (i < clen) {var j = i + alen;if (document.cookie.substring(i, j) == arg)return getCookieVal (j);i = document.cookie.indexOf(" ", i) + 1;if (i == 0) break;}return null;}function SetCookie (name, value) {var argv = SetCookie.arguments;var argc = SetCookie.arguments.length;var expires = (argc > 2) ? argv[2] : null;var path = (argc > 3) ? argv[3] : null;var domain = (argc > 4) ? argv[4] : null;var secure = (argc > 5) ? argv[5] : false;document.cookie = name + "=" + escape (value) +((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +((path == null) ? "" : ("; path=" + path)) +((domain == null) ? "" : ("; domain=" + domain)) +((secure == true) ? "; secure" : "");}function DeleteCookie (name) {var exp = new Date();exp.setTime (exp.getTime() - 1);var cval = GetCookie (name);document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();}// End --></script></head><body>Tip: When you first come to this page, you will not use it in the future. It will tell you how many times you come to this page every time you come to this page, and indicate the time you last came to this page<br/> <script language="JavaScript">if (Count()==0){document.write("Hello!" + Who() + ". You are here for the first time, please give me more valuable suggestions.");}else{document.write("Hello!" + Who() + ". You have been here" + Count() + "Time, the last time is " + When() + ".");}</script></body></html>For more information about JavaScript related content, please check out the topics of this site: "Summary of JSON operation skills in JavaScript", "Summary of JavaScript switching effects and techniques", "Summary of JavaScript search algorithm skills", "Summary of JavaScript animation special effects and techniques", "Summary of JavaScript errors and debugging skills", "Summary of JavaScript data structures and algorithm skills", "Summary of JavaScript traversal algorithms and techniques" and "Summary of JavaScript mathematical operations usage"
I hope this article will be helpful to everyone's JavaScript programming.