Websites are built to be interactive, seamlessly flowing from one page to another. But you might have noticed that some parts of the website require refreshing to see new data, like a page with news headlines or a blog post with comments.
While this works just fine for static content, dynamically-generated pages need a different approach to provide users with an optimal browsing experience. This is where asynchronous angular local storage comes in – enabling you to save data like user preferences and comments locally on their machine even if the connection is lost.
What is `localstorage`?
LocalStorage is a browser feature that allows us to store data locally on the user’s machine in a non-persistent way. Now local storage comes in two flavors – temporary and persistent. Temporary store data is only available until the user navigates away from the page, while persistent store data are accessible even when the same page is loaded later.
Perks of accessing local storage
- They can store any piece of data – comments, search queries, passwords, or content that we want to retain for the most accurate and up-to-date information.
- We don’t need to open an additional window or reopen a part of our application to save data. The browser will act as a proxy through which we can access the data stored in local storage.
How local storage works?
You might be wondering how local storage works? After all, it doesn’t even have its APIs! LocalStorage provides a way of storing a small amount of data that is not persistent. The browser stores data locally in the cache. It is neither a cookie nor session storage.
LocalStorage API lets us store data in the following format:
Storing data in localStorage
We need to create a key and store some value. The data will be available on this key or across all the pages that the same user in the browser opens. As mentioned earlier, we can store any piece of data like – comments, search queries, passwords, and so on in local storage. We can use angular local storage in applications to store data related to the current page.
For example, if a user navigates directly to the posting page, we can save the data in local storage and make it available when we open that particular post again in our app.
But how do we get these saved values? If you have ever worked with an Angular app before, you would surely know that integration with REST APIs is not always that smooth. So how do we access the data stored on localStorage?
Summary
To save data in localStorage in Angular, we need to create a key and store some value. The data will be available on this key or across all the pages that the same user in the browser opens. We can store any kind of data like – comments, search queries, passwords, and so on in local storage.
LocalStorage API comes in two flavors – temporary and persistent. Temporary stores data that is only available until the user navigates away from your page, while persistent stores data accessible even when you later load the same page.
