Created on 15 June, 2023 • Tutorials • 181 views • 4 minutes read
Everything about jQuery
What Is jQuery?
Advantages and Disadvantages of jQuery
If you’re still weighing whether it’s beneficial to learn jQuery or not, here are the advantages and disadvantages of using this JS library for web development.
One of the core features of the jQuery library is event handling. Creating events like a mouse click function and form submission only require a few lines of code. This helps to keep the HTML code clean and free from various event handlers. Modifying HTML elements is also easier with its Document Object Model (DOM) manipulation feature. The user-friendly web browser interface lets you add, edit, and delete web elements using various event methods. The AJAX method, in particular, makes jQuery ideal for developing a responsive website using the AJAX functions. This feature improves user experience by simplifying HTTP request operations without reloading the web page.
Furthermore, jQuery comes with plenty of built-in animation effects. It even lets you create custom animations composed of your chosen CSS properties. What’s more, jQuery comes with cross-browser support, making it compatible with popular web browsers. It works with CSS3 selectors and XML Path Language (XPath) syntax as well. Keep in mind that adding jQuery scripts to a website is easier through a content delivery network (CDN). This way, you don’t have to download and store the library file in the site’s folder.
The biggest disadvantage is the fact that jQuery doesn’t allow backward compatibility. Since jQuery has plenty of published versions, you have to host the library yourself and update it periodically.
Important jQuery Features
If you want to learn how jQuery can benefit you, let’s look at the essential function examples.
- hide() Function: The hide() function hides HTML elements, making them no longer affect the HTML page. It serves as an animation method if paired with the duration and easing parameters as well as the callback function.
- show() Function: The show() function displays HTML elements. It only works on elements hidden by the hide() function. Additionally, it becomes an animation method function if given a parameter, just like hide().
- toggle() Function: The toggle() function modifies HTML elements’ visibility based on their CSS display property using a click event. If an element is visible, this function will hide it. The opposite will happen if it’s hidden. Web developers often use this function to turn several animations into a sequence. If given a parameter, this function can bind two or more functions to specific elements. It lets you toggle between the functions by clicking on the element. Keep in mind that this function signature was deprecated in jQuery version 1.8 and removed in version 1.9.
- fadeIn() Function: The fadeIn() function modifies HTML elements’ opacity to make them appear gradually on the HTML page. Pair it with the speed or callback function to adjust the animation’s speed and trigger the next event once the matched elements fully appear.
- fadeOut() Function: This jQuery function works the opposite of the fadeIn() function. Similar to hide() and show(), the fadeIn() and fadeOut() become animation methods if given a parameter.
- fadeToggle() Function: The fadeToggle() function works similarly to the toggle() function. It lets a user display or hide specific elements gradually.
- slideUp() Function: The slideUp() function hides elements with a sliding animation. Pair it with duration and easing parameters to adjust the animation’s duration.
- slideDown() Function: The slideDown() function displays elements with a sliding animation. Similarly, it accepts duration and easing parameters.
- slideToggle() Function: The slideToggle() function lets you toggle between the slideUp() and slideDown() functions to display or hide elements.
- animate() Function: This function animates elements using one or several CSS properties. Like the previous functions, it lets you adjust the animation’s duration and transition mode as well as trigger the following function once it’s complete.
Keep in mind that the animate() function cannot display hidden elements like slideDown() and fadeIn().