How to set a cache with Local Storage

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I have a ads box and i want close it to by clicking x button so after it has been closed i don't want to se it until 24 hours with cache I created a localstorage but it's not working as i expected how should i edit my example

    var showCase = Math.round(+new Date() / 1000);

        document.getElementById("close_ads").addEventListener("click", function () {
        if (typeof localStorage.showCase == 'undefined' || parseInt(localStorage.showCase) <= (showCase - 3600)) {            
          localStorage.showCase = showCase;
          document.getElementById('reklam_box').style.display = 'none';
        }
        });
      
<div id="ads_box">
Hi..I am a ads..
<span id="close_ads">Close ads and don't show unit for 24 hours</span>
</div>
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Example</title>
</head>
<body>
    <div id="ads_box">
        Hi..I am a ads..
        <span id="close_ads">Close ads and don't show unit for 24 hours</span>
    </div>
    <script>
        var dontShowUntil = new Date(new Date().getTime() + 60 * 60 * 24 * 1000);

        document.getElementById("close_ads").addEventListener("click", function () {
            localStorage.dontShowUntil = dontShowUntil;
            document.getElementById('ads_box').style.display = 'none';
        });

        if (new Date(localStorage.dontShowUntil) > new Date()) {
            document.getElementById('ads_box').style.display = 'none';
        }
    </script>
</body>
</html>

What is the difference between local storage vs cookies?, is for client side, whereas cookies are for the client as well as server side. Change the size setting in Local Cache. By default, the local cache size is 1 GB. This includes the /site and /siteextensions folders that are copied from the content store, as well as any locally created logs and data folders. To increase this limit, use the app setting WEBSITE_LOCAL_CACHE_SIZEINMB.

You need to use Localstorages .setItem() and .getItem check this out.

https://www.taniarascia.com/how-to-use-local-storage-with-javascript/

So something like this

// set the item
localStorage.setItem('showCase', 3600);

//get the item
var showCase = localStorage.getItem('showCase');

Caching in on HTML5 Local Storage -- Visual Studio Magazine, HTML5 introduces client-side caching for local and session storage. Learn how to boost your app's performance through the new functionality. When passed a key name, the removeItem() method will remove that key from the storage if it exists. If there is no item associated with the given key, this method will do nothing. window.localStorage.removeItem('name'); clear() This method, when invoked, clears the entire storage of all records for that domain. It does not receive any parameters.

useful linkes:

https://johnresig.com/blog/dom-storage/

https://developer.mozilla.org/en-US/docs/Web/API/Storage

NOTICE : when working with localStorage with array of objects you must save it like that:

Just convert the objects to JSON strings:

localStorage.setItem("savedData", JSON.stringify(objects));

var objects = JSON.parse(localStorage.getItem("savedData")));

Client-side storage, This video covers the fundamentals of how you can do fetch calls to retrieve JSON data from a Duration: 13:39 Posted: Jun 28, 2018 To display the Local Storage Settings panel: Right-click (Windows) or Control-click (Macintosh) the application image while it is running. From the context menu, select Settings, and then click the Local Storage tab.

How to Cache Data with LocalStorage, Set the app as your "new tab" page in your browser and the to-dos will persist on your local computer as long as you don't clear the cache. Local storage provides at least 5MB of data storage across all major web browsers, which is a heck of a lot more than the 4KB (maximum size) that you can store in a cookie. This makes local storage particularly useful if you want to cache some application data in the browser for later usage.

How to Use Local Storage with JavaScript – Tania Rascia, One of the first uses for local storage that I discovered was caching data from the Web when it takes a long time to get it. My World Info entry for  However, even without any sort of database, we can use the local storage built into a web browser to save to-do items. This could be actually useful for taking quick notes. Set the app as your "new tab" page in your browser and the to-dos will persist on your local computer as long as you don't clear the cache.

Local Storage And How To Use It On Websites, to set a local cache with expiration, using HTML5 LocalStorage. This dramatically increases the performance of a mobile application. LocalStorageExpires.js. Local storage provides at least 5MB of data storage across all major web browsers, which is a heck of a lot more than the 4KB (maximum size) that you can store in a cookie. This makes local storage particularly useful if you want to cache some application data in the browser for later usage.

Comments
  • hmm..so how can i provide to display:none after click to x button with localstorage my english is not enough to understand article thanks by the way.