05 October, 2020
A: jQuery enables us to add effects to make an attractive and interactive web page. The effects like fading, sliding, show/hide, animation, etc. It provides many effects on a web page. Some of them are as follows:
A: The jQuery toggle() is a particular method that is to toggle between the hide() and show() methods.
A: Events are nothing but responding to the user's actions on a webpage. It provides simple techniques for connecting event handlers to selections. When the event occurs, the given function will execute.
A: The frequently used jQuery events are as follows:
A: The $() function is to wrap an object into a jQuery object that later facilitates to call the several methods that are present in the jQuery object. You can pass a selector string to $() function, and it returns to jQuery objects that contain an array of selected elements. Instead of the $() function, jQuery() function can also be used as they are the same functions.
A: When there is an Ajax call, at that point the jQuery Ajax events are terminated during the life cycle of the Ajax call. These events are used to display custom messages to the user or to do operations. There are six different jQuery Ajax events. They are as follows:
A: When the Ajax request is about to send for execution, the jQuery verifies for other Ajax requests. If it doesn’t find any requests, then jQuery triggers the ajaxStart() event. All the event handlers that are registered in the ajaxStart() method get executed.
A: The jQuery delay() method that helps to delay the execution of the function in the queue. It sets a timer to delay the execution of the next item in the queue.
$(selector).delay (speed, queueName)
Here, queueName is an optional parameter that specifies the name of the queue. Its default value is fx the standard queue effect.
A: When the Ajax request completes, jQuery triggers the ajaxComplete() event. All the event handlers that are registered in the ajaxComplete() method get executed.
A: jQuery is designed for the purpose of client scripting and it is not suitable for server scripting.
A: The jQuery css() method that helps to set style properties or values for selected events or to return the value. It facilitates you to get one or more style properties.
A: The ajaxload() method is used to send the HTTP request to load the HTML or text content from the server and adds them to the DOM elements.
A: Selector is to find the HTML elements that you want to work on the web page to find or select the element using jQuery.
There are several types of selectors in jquery. Some of them are as follows:
A: Both ID selectors and class selectors are used to select elements as they are in CSS. The main difference is that the ID selector selects the single element that matches the given ID, whereas, class selectors select the multiple elements that match with the given class.
A: The different types of selectors in jQuery are as follows:
A: jQuery filter is used to filter the specific value from the object. It filters the result of the original query into a particular element.
A: Content Delivery Network or Content Distribution Network (CDN) is a large distributed system of servers deployed in multiple data centres across the internet. It provides the files from servers at a higher bandwidth that leads to fast loading time. The companies that offer free public CDNs are Google, Yahoo, and Microsoft.
A: There are three different types of CDN. They are as follows:
A: The advantages of using CDN are as follows:
A: jquery.min.js is a precise version of jquery.js to preserve the bandwidth. Both are the same in terms of functionality, but it is recommended to use the compressed version in the production environment. The efficiency of a web page increases with the use of a minimized version of jQuery.
A: jQuery Mobile is an HTML5 based user interface system that is designed to create responsive websites and apps that can access on all smartphones, tablets, and desktop devices.
A: The benefits of using jQuery Ajax methods are as follows:
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