Dash Basics: HTML and Core Components

 HTML and Core Components. In this module, we'll delve into the fundamentals of Dash, focusing specifically on HTML and Core Components. Dash is a powerful Python framework for building interactive web applications. It seamlessly integrates with Plotly for creating dynamic and visually appealing data visualizations.


HTML Components:

Dash provides a set of HTML components that represent various HTML tags. These components allow developers to create the structure of their web applications using Python syntax. Each HTML component corresponds to a specific HTML tag, such as <div>, <p>, <h1>, <input>, etc.


Here's an overview of some commonly used HTML components in Dash:


html.Div: Represents a generic HTML division or container.

html.H1, html.H2, html.H3, etc.: Represent HTML heading elements (h1, h2, h3, etc.).

html.P: Represents a paragraph of text.

html.Input: Represents an input field where users can enter text.

html.Button: Represents a clickable button element.

html.Table: Represents an HTML table for displaying tabular data.

These HTML components can be combined and nested within each other to create complex layouts for Dash applications.


Core Components:

In addition to HTML components, Dash provides a set of Core Components that offer higher-level interactive functionality. These components are built using JavaScript, HTML, and CSS through the React.js library. Core Components enable developers to add interactivity and dynamic behavior to their Dash applications.


Some key Core Components include:


dcc.Graph: Represents a Plotly graph for displaying data visualizations.

dcc.Slider: Represents a slider input element for selecting numeric values within a range.

dcc.Input: Represents an input field for entering text or numeric values.

dcc.Dropdown: Represents a dropdown menu for selecting options from a list.

dcc.DatePickerSingle, dcc.DatePickerRange: Represent date picker components for selecting dates.

These Core Components offer a wide range of interactive features that enhance the user experience of Dash applications.


By leveraging both HTML and Core Components, developers can create rich and interactive web applications with Dash. In the following exercises, we'll explore how to use these components to build dynamic Dash layouts and incorporate data visualizations using Plotly graphs. Let's dive in and start building!







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