Question: What is jQuery Data role?

A page in jQuery Mobile consists of an element with a data-role=”page” attribute. Within the “page” container, any valid HTML markup can be used, but for typical pages in jQuery Mobile, the immediate children of a “page” are divs with data-role=”header” , class=”ui-content” , and data-role=”footer” .

What is the use of the jQuery data method?

The . data() method allows us to attach data of any type to DOM elements in a way that is safe from circular references and therefore from memory leaks. Using the data() method to update data does not affect attributes in the DOM.

What is data role content?

The data-role=”content” is simply used so that jQuery knows where your content is in relation the the header and footer (as they may well be fixed).

What is data role in HTML?

The data-* attributes is used to store custom data private to the page or application. The data-* attributes gives us the ability to embed custom data attributes on all HTML elements. … The attribute name should not contain any uppercase letters, and must be at least one character long after the prefix “data-”

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What is dataset in jQuery?

HTML5 introduced the Dataset API which adds the dataset property to all DOM elements and a format for the data-* custom attributes. … You can access the dataset property using the jQuery prop function and then you can access the values using the keys directly as properties.

What is jQuery object?

The jQuery object is a collection of DOM elements and behaves like a special array. Everything in jQuery is an object. When we create a new element or select an existing element the jQuery returns those elements in a collection. … selector – It specifies the element to select to return the object.

How read data attribute in jQuery?

Alternatively, you can also use the jQuery data() method (jQuery version >= 1.4. 3), to get the data-attribute of an element using the syntax like $(element). data(key) . That means in the above example to get the data-id using data() method you can use the statement like $(this).

What is mobile jQuery?

jQuery Mobile is a HTML5-based user interface system designed to make responsive web sites and apps that are accessible on all smartphone, tablet and desktop devices. It is built on the rock-solid jQuery and jQuery UI foundation, and offers Ajax navigation with page transitions, touch events, and various widgets.

What is jQuery Mobile page?

The page is the primary unit of interaction in jQuery Mobile and is used to group content into logical views that can be animated in and out of view with page transitions.

What is a data Role page?

The data-role=”page” is the page displayed in the browser. … The data-role=”main” defines the content of the page, like text, images, buttons, forms, etc. The “ui-content” class adds extra padding and margin inside the page content.

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What are different data roles?

In this article, you have learned about three major roles that can be present on a data team: the data engineer, data analyst, and data scientist. … Other related data roles like data architect or statistician can also take on specialized responsibilities.

What is Bootstrap CSS?

Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS- and (optionally) JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.

What is the difference between data and data set?

Data are observations or measurements (unprocessed or processed) represented as text, numbers, or multimedia. A dataset is a structured collection of data generally associated with a unique body of work.

What is the use of jQuery data method Mcq?

An efficient query method for finding the set of document elements that match a CSS selector. A useful set of methods for manipulating selected elements.

What is dataset in JavaScript?

The dataset is a document-oriented module property to access and set the data attribute using JavaScript elements. It is an interface to create, delete, handle, and maintain data of the application. It provides read-only access for data attributes but you can modify the write property.