JavaScript Frameworks: jQuery Overview

What function would you use to add content to the beginning of selected elements in jQuery?

Which jQuery function removes selected elements from the document?

Which jQuery method allows you to run processing when the page has fully loaded?

What does the jQuery function fadeOut() do?

Which event method allows associating an event with a callback function in jQuery?

Which of the following jQuery effects hides an element without any further modification?

What is the primary purpose of the animate() function in jQuery?

Which method is NOT a jQuery DOM manipulation method?

What characterizes a JavaScript library?

Which of the following is NOT a feature of jQuery?

How do you include jQuery in an HTML document?

Which jQuery function is used to retrieve or modify the textual content of selected elements?

What is the main advantage of using frameworks over libraries in JavaScript?

What is the correct jQuery syntax to select an element and apply an action?

Which function would you use to access or modify a CSS property of selected elements in jQuery?

What does the val() function in jQuery allow you to do?

JavaScript Frameworks & Libraries

JavaScript is a widely used programming language for web development
Frameworks and libraries accelerate application development using JavaScript
Libraries are collections of class definitions and functions
Framework defines a skeletal structure for applications that applications can fill in
Libraries aim to easily reuse code without fundamentally changing the application's structure

jQuery

jQuery is a popular JavaScript library
It simplifies challenging aspects of JavaScript, such as DOM and AJAX
Used to manipulate HTML DOM, CSS, handle events, and AJAX calls
jQuery provides a basic syntax: $(selector).action()

jQuery Usage

To use jQuery, include the .js file as an external script in the HTML
Example: <script src="jquery-3.4.1.js"></script>

jQuery Syntax

$(selector).action(): used to select an element in the DOM and apply an action to it

jQuery DOM Access

text(): retrieves or modifies the textual content of selected elements.
html(): retrieves or modifies the HTML content of selected elements.
val(): retrieves or modifies the value of an element.
data(): retrieves or modifies the value of a data-* attribute.
attr(): retrieves or modifies the value of an attribute.
prop(): retrieves or modifies the value of a property.
css(): retrieves or modifies the value of a CSS property.

jQuery Events

jQuery adds additional event options beyond standard JavaScript events.
`.on("event", function(){}): Allows callback functions to be assigned to events.

jQuery Effects

jQuery provides functions to animate elements:
show(), hide(), fadeIn(), fadeOut(), fadeTo(), slideDown(), slideUp(), animate()

This quiz explores the fundamentals of JavaScript frameworks and libraries, focusing specifically on jQuery. Test your knowledge about how jQuery simplifies web development tasks, including DOM manipulation and AJAX handling. Ideal for anyone looking to strengthen their understanding of client-side programming.