Emojis are characters from the UTF-8 character set: 😄 😍 💗
What are Emojis?
Emojis look like images, or icons, but they are not.
They are letters (characters) from the UTF-8 (Unicode) alphabet.
UTF-8 covers almost all of the characters and symbols in the world.
The HTML charset Attribute
To display an HTML page correctly, a web browser must know the character set used in the page.
This is specified in the meta tag:
Quickly and easily clear floated content within a container by adding a clearfix utility. 0950755459
Swap text for background images with the image replacement class.
Bootstrap includes a wide range of shorthand responsive margin and padding utility classes to modify an element’s appearance.
Documentation and examples for common text utilities to control alignment, wrapping, weight, and more. 0950755459
State and Lifecycle
This page introduces the concept of state and lifecycle in a React component. You can find a detailed component API reference here.
Consider the ticking clock example from one of the previous sections. In Rendering Elements, we have only learned one way to update the UI. We call ReactDOM.render() to change the rendered output:
Handling Events Handling events with React elements is very similar to handling events on DOM elements. There are some syntax differences:
React events are named using camelCase, rather than lowercase.
With JSX you pass a function as the event handler, rather than a string.
Navbar Documentation and examples for Bootstrap’s powerful, responsive navigation header, the navbar. Includes support for branding, navigation, and more, including support for our collapse plugin.
Media object Documentation and examples for Bootstrap’s media object to construct highly repetitive components like blog comments, tweets, and the like.
Composition vs Inheritance React has a powerful composition model, and we recommend using composition instead of inheritance to reuse code between components.
In this section, we will consider a few problems where developers new to React often reach for inheritance, and show how we can solve them with composition.