Introduction
There are a variety of the reason why you would possibly need to refresh a webpage programmatically utilizing JavaScript. Perhaps you need to refresh a web page after a sure occasion or motion, or maybe you could reload a web page after a particular period of time.
On this Byte, we’ll discover the way to reload a web page utilizing JavaScript, and the variations between a pressure reload and a traditional reload.
Why Reload a Web page with JS?
Reloading a web page utilizing JavaScript will be helpful in a wide range of situations. For example, if you’re engaged on a single-page utility (SPA) that should refresh information from the server with out a handbook web page refresh. Or, when you could implement a characteristic that requires a web page to reload after a particular time or person occasion. JavaScript offers a simple solution to deal with these sorts of duties.
The best way to Reload a Web page utilizing JavaScript
Reloading a web page utilizing JavaScript is fairly simple. You need to use the location.reload() methodology, which is part of the window.location object. Here is a easy instance:
window.location.reload();
When this line of code is executed, the present doc can be reloaded. It is so simple as that!
Observe: The location.reload() methodology does settle for an non-obligatory parameter. When you set it to true, it’s going to pressure a reload from the server. When you set it to false or go away it empty, it’s going to reload from the browser cache, if obtainable.
Power Reload vs Regular Reload
Whenever you reload a web page utilizing JavaScript, you might have two choices: a traditional reload and a pressure reload.
A regular reload happens if you name location.reload() with none arguments or with a false argument. On this case, the browser will attempt to reload the web page from its cache. This may be sooner, but it surely won’t fetch the newest model of the web page from the server.
window.location.reload(); // regular reload
window.location.reload(false); // additionally a traditional reload
A pressure reload, then again, happens if you name location.reload() with a true argument. This forces the browser to bypass its cache and request the web page from the server. This ensures that you just get the newest model of the web page, but it surely is likely to be slower as a result of server request.
window.location.reload(true); // pressure reload
So, whether or not you need to use a traditional reload or a pressure reload will depend on your particular wants and the habits you need to obtain.
Reloading a Web page After a Particular Time
There are situations the place you would possibly need to reload a web page after a particular time. This may be helpful in situations like a information web site the place you need to refresh the content material each couple of minutes or an internet public sale the place you need to replace the present bid standing. Or possibly you need to get the most recent code from the server in case the app has been up to date.
To reload a web page after a particular time, you should utilize the setTimeout() perform in JavaScript. This perform takes two parameters: the perform to execute and the delay earlier than execution (in milliseconds).
Here is an instance:
setTimeout(perform(){
location.reload();
}, 5000);
On this instance, the web page will reload each 5 seconds (5000 milliseconds).
Simply do not forget that frequent web page reloads will be annoying to the person and devour extra bandwidth. All the time make sure that the reload frequency is cheap and needed in your utility.
Reloading a Web page Primarily based on Person Occasion
Generally, chances are you’ll need to reload a web page based mostly on a particular person occasion, like a button click on, type submission, or a sure interplay.
Take into account a state of affairs the place you might have a button, and also you need to reload the web page when this button is clicked. You’ll be able to obtain this through the use of the onclick occasion in JavaScript.
Here is a easy instance:
<button onclick="location.reload();">Reload Web page</button>
On this instance, the web page will reload each time the button is clicked.
Conclusion
On this Byte, we have explored the way to use JavaScript to reload a web page after a particular time interval and based mostly on particular person occasions. Whereas these strategies will be fairly helpful, it is essential to contemplate the person expertise and the need of the reloads in your particular utility.
