1. Home
image

jQuery Tutorial Concepts - From Beginner to Pro

Learn jQuery from scratch! Our tutorial covers basics to advanced concepts. Start learning today!

  • 19
  • 3
right-top-arrow
4

Document Ready jQuery

Updated on 14/08/2024447 Views

In the world of building websites, jQuery is a trusted toolbox for developers. It also helps you make complicated tasks easy, especially when we talk about adding useful features to websites. One of the most important tools that your toolkit should have is document ready jquery.

This tool is like a special signal that tells your code to start running the web page when it has finished loading. In this guide, we will understand how to use $document.ready() in jQuery. We will talk about its features, importance, and how to leverage it in your projects.

Now, let us understand what “$(document).ready() is

What is a document ready jQuery?

Consider a web page as a jigsaw puzzle. The DOM is like when all the pieces are put together, showing its full picture. While using document ready jQuery, you are typically saying “Hold on until the puzzle is finished before doing anything”. Doing this makes sure your code does not mess with the page before it has fully loaded, which could lead to errors.

Now, let’s understand the importance/significance of document ready jQuery function.

What is the Importance of document ready jQuery?

The document ready jQuery function in jQuery is like a friendly reminder to wait until a web page has loaded completely before starting to run any Javascript code. Doing this will ensure that everything on the page is ready for interaction after eliminating room for any errors or glitches that might happen otherwise. 

This is like ensuring that all the ingredients in the food are gathered before starting to cook a meal, which makes the process simple.

Now, let us understand the best practices to follow when using a document ready jQuery function.

What Are the Best Practices to Use jQuery document on ready

To take the best out of document ready jQuery function, implement these five practices. Let us understand each of them in detail.

  1. Start Early: Place the document ready jQuery function at the beginning of your jQuery code to ensure all the scripts are in check as soon as the web page gets fully loaded. This approach will enhance the user experience by minimizing any delay in the functionality.

Let’s take an example, consider yourself ready for the whistle to blow out to sprint in a race. Similarly, by implementing a document ready jQuery function, you are ready to go immediately after the web page is ready to load.

  1. Keep Things Simple: Break the code into smaller, manageable chunks like into different functions and processes, which is like arranging and organizing your closet. It will make things easier to work with.

A tidy and well-structured code is easy to understand, debug, and update. Just like a tidy closet makes it easier to find your favorite shirt.

  1. Share and Reuse: Consider a reusable code like having a favorite ingredient that you put in all of your meals. If you have a code that you can use across various pages and projects, consider storing them in a separate file. 

Doing this makes it easier for the file to load by using the jQuery document on ready function, which will save a lot of your time and effort.

  1. Test, Test, and Test: Testing your code on various web browsers and devices is like trying on different clothing options before buying them. Doing this ensures that you get the right fit. 

Similarly, testing your code will ensure that it works smoothly for all users, regardless of the browser they are using. A thorough testing can catch any issues early on and make sure that your website runs smoothly.

  1. Handle Errors Gracefully: Adding an error message in your code is like putting up warning signs on a road. This alerts you about any potential hazards and helps you in safe navigation. Also, an error message in your code can help you identify and fix the problem correctly.

To manage errors properly, you should ensure that your code runs smoothly and a seamless experience for its users. It works like a warning sign, that keeps a driver safe on the road.

4 Practical document ready jQuery Example

Let us explore how (document).ready() jQuery works with examples:

  1. Making Buttons Work: With `$(document).ready()`, you can make buttons on your webpage do special things. For example, clicking a ‘Submit’ button might send a form or clicking a ‘Like’ button might add a thumbs-up icon.
  2. Loading New Stuff: If you want to add more things, like pictures or text-to a webpage without having to refresh the whole page, the document ready jQuery function can help. It means you can update parts of your page without making your visitors wait for the whole thing to reload.
  3. Fancy Effects: Ever seen a webpage where things move or change color when you scroll or hover over them? With `$(document).ready()`, you can add those cool effects to your website. It is like having a magic wand to make your webpage come alive!
  1. Getting Data: Sometimes, you might want to show information from other websites on your own. With document ready jQuery function, you can fetch data from other sites and display it on yours. For example, you could show the latest weather forecast or news headlines without any hassle.

Now, let us understand some advanced techniques of jQuery ready method

What are Some Advanced Techniques Used in the jQuery ready Method?

If you are eager to enhance your `$(document).ready()` skills, give these techniques a try:

  1. Smart Loading: Instead of loading everything at once, stuff should be loaded when it is required. This helps your webpage load faster and smoother because it is not bogged down with unnecessary stuff.
  1. Conditional Magic: Make your code smart enough to do different things depending on the activity on the page. For example, if some user clicks a button, your code can react differently than if they just scroll down the page. It is like giving your webpage special powers to adapt to different situations.
  1. Lazy Loading: Don't rush to load heavy stuff like large-sized images right away. Instead, wait until the user needs them. This speeds up the loading time of your website because it cuts down the actions being performed. It is like waiting until you are thirsty to pour yourself a drink instead of carrying it all the time.

Now, let me ask you, what would you do when you are facing troubleshooting issues while implementing the document ready jQuery?

jQuery Document on Ready: Solutions to Tackle Troubleshooting

When things don’t work in your favor, here are things that you should do:

  1. Checking the console: Look out for the messages in your browser’s developers tool to find what is going wrong.
  2. Debugging: Break the code into smaller pieces and then test them individually to find the errors.
  3. Be patient: At times, it takes some time and patience to figure out what is going on.

Now, let’s understand some real-world applications where a jQuery document on ready is used.

Some Real-world Applications Where Document Ready jQuery is Used

In real-life, a jQuery document is used in several ways, a few of which are mentioned below:

  1. Online Stores: A document ready jQuery function ensures all the buttons and features are working smoothly when you are shopping online.
  2. Blogs and Articles: It is also used to load new posts and comments without any interruption in your reading.
  3. Games and Interactive Websites: It enables you to add some fun features like quizzes or interactive maps that only appear once the page is completely loaded.

Now, let’s find some considerations to ensure in the future.

Document Ready jQuery: Some Future Considerations

  1. Faster Websites: Discover ways to make your websites load super quickly by using `$(document).ready()` in clever ways. This means finding smart tricks to make your website faster.
  2. More Interactive Experiences: Combine `$(document).ready()` with other cool tech stuff to make your websites even more fun and engaging. Next, think of adding interactive features that respond to what users do, like animations or games. It is like turning your website into a cool playground for visitors to explore and enjoy.

Wrapping Up!

In conclusion, a document ready jQuery is the very first step in Javascript coding. It ensures everything happens at the correct time. It also enables your website to become faster, smoother, and more enjoyable for a user. 

Understanding how jQuery works, following all the best practices, and getting creative with your code can help you build amazing websites that people would love to use. So, why wait? Go ahead and start mastering document ready jQuery function today.

Before bidding you goodbye, here are a few important FAQs circling a document ready jQuery.

Frequently Asked Questions (FAQs)

  1. What is the difference between jQuery document ready and load?

Unlike ‘$(document).ready()’, the ‘load’ event in jQuery triggers when all content, including images and other resources, is fully loaded, which may result in a longer wait time for execution.

  1. What are the differences between the $() function and document ready?$ function() { })` is a shorthand for ‘$(document).ready()’, both serving the same purpose of executing code when the DOM is ready.
  1. Can I use jQuery without document ready?

While it is possible, using jQuery without ‘$(document).ready()’ may lead to code execution before the DOM is fully loaded, potentially causing errors.

  1. What is a document ready?

Document ready refers to the event fired when the HTML document has been fully loaded and parsed, making it ready for manipulation via JavaScript or jQuery.

  1. Is the document ready JavaScript or jQuery?$(document).ready()` is a feature of jQuery, not JavaScript, specifically designed to address the need for code execution after the DOM is fully loaded.
image

mukesh

Working with upGrad as a Senior Engineering Manager with more than 10+ years of experience in Software Development and Product Management.

Get Free Career Counselling
form image
+91
*
By clicking, I accept theT&Cand
Privacy Policy
image
Join 10M+ Learners & Transform Your Career
Learn on a personalised AI-powered platform that offers best-in-class content, live sessions & mentorship from leading industry experts.
right-top-arrowleft-top-arrow

upGrad Learner Support

Talk to our experts. We’re available 24/7.

text

Indian Nationals

1800 210 2020

text

Foreign Nationals

+918045604032

Disclaimer

upGrad does not grant credit; credits are granted, accepted or transferred at the sole discretion of the relevant educational institution offering the diploma or degree. We advise you to enquire further regarding the suitability of this program for your academic, professional requirements and job prospects before enr...