jquery interview questions

The factory function $() is a synonym of the jQuery() function. It provides the files from servers at a higher bandwidth that leads to faster loading time. Answer: It is used to toggle between the fadeIn() and fadeOut() functions. . To get first element, we can use following code: BUT Question: What are the features of jQuery? For example: you will get the values like 756 and 756px respectively. Embed analytics and dashboards right inside your app with a JS SDK. Back to top. toggleClass( class ) - Adds the specified class if it is not present, removes the specified class if it is present. We can access any element in above list using both eq() and get() jQuery methods. It provides the files from servers at a higher bandwidth that leads to faster loading time. Last Updated 03 Jul, 2020. For a Complete Online Free Test on jQuery and other web technologies, click here. jQuery UI works well for highly interactive web applications with many controls or for a simple page with a date picker control. You can use by .resize() function. Query Mobile is an HTML5-based user interface system designed to make responsive web sites and apps that are accessible on all smartphones, tablet and desktop devices. $(document).ready() function starts executing after DOM (Document Object Model) is loaded. Signup to submit and upvote tutorials, follow topics, and more. It is a highly flexible tool, built upon the foundations of progressive enhancement, which adds advanced features to any HTML table. It's used by the jQuery, jQuery UI, and jQuery Mobile projects and is capable of testing any generic JavaScript code. For example, if a text input had an initial value of ‘Male,’ and later it was changed by the user to ‘female,’ attr() will return the value as ‘Male’ whereas prop() will return the value as ‘female.’. Being lightweight and fast, it extensively simplify the use of JavaScript on a website. Decreases the consumption of server resources. Refer to this jQuery documentation for datepicker options. So our above function will become as below: jQuery(document).ready(){     //code here... as below         alert("DOM loaded...."); }); We can also use shorthand for above function as below, although this approach is not recommended because code looks confusing and not widely used or even understood for beginners. alert("category checked"); Question: Describe the use of the param() method in jQuery?

attr( properties ) - Set a key/value object as properties to all matched elements. Rich, responsive and Slick UI with no page flickers. The jQuery library will already be cached in the user’s browser if the user visited another website that references the same jQuery library. The siblings() function returns all the siblings of given HTML elements. Question: What are all the ways to include jQuery on a page? live(): this method attaches the event handler to the root of the document. It is cross-platform and supports different types of browsers.

Explain with example. Answer: jQuery enables us to add effects on a web page. As every jQuery method returns a jQuery object to which it’s working with, so we can achieve the desired functionality by chaning the above code to below (jQuery Chaining) as: $("h2").text("I AM A CHANGED TEXT").css("font-style", "italic"); Now this is more efficient and simplified approach. "//code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css", "//code.jquery.com/ui/1.11.4/jquery-ui.js", "height: 100px; width: 100px; position: relative", //mouseover function will execute when mouse pointer will reach on