Let decodedCookie = decodeURIComponent(okie) The next time the visitor arrives at the same page, he/she will get a welcome message.įor the example we will create 3 JavaScript functions:įirst, we create a function that stores the name of the visitor in a cookie variable: The first time a visitor arrives to the web page, he/she will be asked to fill in his/her name. In the example to follow, we will create a cookie that stores the name of a visitor. If you want to find the value of one specified cookie, you must write a JavaScriptįunction that searches for the cookie value in the cookie string. The new cookie is added to okie, so if you read okieĭisplay All Cookies Create Cookie 1 Create Cookie 2 Delete Cookie 1 Delete Cookie 2 If you set a new cookie, older cookies are not overwritten. But it is not.Įven if you write a whole cookie string to okie, when you read it out again, you can only see the The okie property looks like a normal text string.
Some browsers will not let you delete a cookie if you don't specify the path. You should define the cookie path to ensure that you delete the right cookie. JS References JavaScript Objects HTML DOM Objects JS Examples JS Examples JS HTML DOM JS HTML Input JS HTML Objects JS HTML Events JS Browser JS Editor JS Exercises JS Quiz JS Certificate JS Graphics JS Graphics JS Canvas JS Plotly JS Chart.js JS Google Chart JS D3.js JS vs jQuery jQuery Selectors jQuery HTML jQuery CSS jQuery DOM
JS JSON JSON Intro JSON Syntax JSON vs XML JSON Data Types JSON Parse JSON Stringify JSON Objects JSON Arrays JSON Server JSON PHP JSON HTML JSON JSONP JS AJAX AJAX Intro AJAX XMLHttp AJAX Request AJAX Response AJAX XML File AJAX PHP AJAX ASP AJAX Database AJAX Applications AJAX Examples JS Web APIs Web API Intro Web Forms API Web History API Web Storage API Web Worker API Web Fetch API Web Geolocation API JS Browser BOM JS Window JS Screen JS Location JS History JS Navigator JS Popup Alert JS Timing JS Cookies JS HTML DOM DOM Intro DOM Methods DOM Document DOM Elements DOM HTML DOM Forms DOM CSS DOM Animations DOM Events DOM Event Listener DOM Navigation DOM Nodes DOM Collections DOM Node Lists JS Async JS Callbacks JS Asynchronous JS Promises JS Async/Await JS Classes Class Intro Class Inheritance Class Static JS Functions Function Definitions Function Parameters Function Invocation Function Call Function Apply Function Bind Function Closures JS Objects Object Definitions Object Properties Object Methods Object Display Object Accessors Object Constructors Object Prototypes Object Iterables Object Sets Object Maps Object Reference JS Versions JS Versions JS 2009 (ES5) JS 2015 (ES6) JS 2016 JS 2017 JS 2018 JS IE / Edge JS History
JS Tutorial JS HOME JS Introduction JS Where To JS Output JS Statements JS Syntax JS Comments JS Variables JS Let JS Const JS Operators JS Arithmetic JS Assignment JS Data Types JS Functions JS Objects JS Events JS Strings JS String Methods JS String Search JS String Templates JS Numbers JS Number Methods JS Arrays JS Array Methods JS Array Sort JS Array Iteration JS Array Const JS Dates JS Date Formats JS Date Get Methods JS Date Set Methods JS Math JS Random JS Booleans JS Comparisons JS If Else JS Switch JS Loop For JS Loop For In JS Loop For Of JS Loop While JS Break JS Iterables JS Sets JS Maps JS Typeof JS Type Conversion JS Bitwise JS RegExp JS Errors JS Scope JS Hoisting JS Strict Mode JS this Keyword JS Arrow Function JS Classes JS Modules JS JSON JS Debugging JS Style Guide JS Best Practices JS Mistakes JS Performance JS Reserved Words