Question-24 Explain how CSS classes can be manipulated in HTML using jQuery.
Answer:jQuery allows for the manipulation of CSS classes in HTML through the use of the addClass(), removeClass(), and toggleClass() methods. The addClass() method is used to add a CSS class to an HTML element, while the removeClass() method is used to remove a CSS class from an HTML element.
Question-25 State some different types of jQuery methods.
Answer:Some different types of jQuery methods include:
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Event methods: such as click(), hover(), and focus()
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Traversing methods: such as children(), parent(), and siblings()
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DOM manipulation methods: such as append(), prepend(), and replaceWith()
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CSS manipulation methods: such as addClass(), removeClass(), and CSS()
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Animation methods: such as animate(), fadeIn(), and slideUp().
Question-26 Explain the operation of the jQuery connect() method.
Answer:The jQuery connect() method creates a connection to a remote server using the WebSockets protocol. It allows for real-time communication between the client and server, enabling the ability to push data from the server to the client in real-time.
Question-27 What is the exact difference between the methods onload() and document? ready()?
Answer:The onload() method is JavaScript when the page finishes loading. The document. a Ready () method is a jQuery method called when the DOM is ready. The main difference is that onload() waits for all assets on the page to be loaded, including images and other external resources, during the document. Ready () only remains for the DOM to be prepared.
Question-28 What are events in jQuery?
Answer:Events in jQuery are actions or occurrences in the browser, such as a user clicking a button or hovering over an element.
Question-29 What is the significance of jQuery.length?
Answer:jQuery.length is a property that returns the number of elements in the selected jQuery object.
Question-30 What is jQuery click event?
Answer:The click event in jQuery is triggered when a user clicks on an element. It can perform a specific action when an element is clicked.
Question-31 Can you explain about ajaxStart() functions?
Answer:The ajaxStart() function in jQuery is a method triggered when an AJAX request is sent. It can perform a specific action when an AJAX request is sent, such as displaying a loading message.
Question-32 Can you explain the ajaxComplete() function?
Answer:The ajaxComplete() function in jQuery is a method that is triggered when an AJAX request is completed. It can perform a specific action when an AJAX request is completed, such as hiding a loading message.
Question-33 Can you say something about jQuery each() method?
Answer:Each () method in jQuery is used to iterate through a set of elements and perform a specific action on each element. It can loop through a set of elements and perform a specific action on each element.
Question-34 Distinguish between jquery.min.js and jquery.js.
Answer:jquery.min.js is a minified version of the jQuery library, which has been compressed to reduce its file size.
Question-35 What exactly is a jQuery Data Table plugin? Also, explain the uses with examples.
Answer:A jQuery Data Table plugin is a tool that allows for easy manipulation and organization of data in a table format. This can include sorting, searching, pagination, and other features. For example, a website displaying a large amount of data in a table format could use a jQuery Data Table plugin to allow users to sort and search through the data easily.
Question-36 Why are Ajax methods preferred in jQuery?
Answer:jQuery Ajax methods are simple, offer cross-browser support, send GET and POST requests and load XML, JSON, Scripts or HTML.
Question-37 How is parent() method in jQuery different from parents() method?
Answer:The parent() function travels only a single level in the DOM tree, whereas parents() searches through the entire DOM tree.
Question-38 Explain the use of the event.preventDefault() method.
Answer:The event.preventDefault() method is used to prevent the default action of an event from occurring.
Question-39 What are the benefits of Using jQquery instead of javascript in an ASP.NET web application?
Answer:Some benefits of using jQuery instead of JavaScript in an ASP.NET web application include built-in cross-browser compatibility support, a large library of pre-built functions, and a simpler and more consistent syntax.
Question-40 What is event.stopPropagation()?
Answer:The event.stopPropagation() method stops an event from propagating to parent elements.