0683854557

0683854557

What is a Web Worker?

A web worker is a JavaScript running in the background, without affecting the performance of the page.
When executing scripts in an HTML page, the page becomes unresponsive until the script is finished.
A web worker is a JavaScript that runs in the background, independently of other scripts, without affecting the performance of the page. You can continue to do whatever you want: clicking, selecting things, etc., while the web worker runs in the background.


Alerts

Provide contextual feedback messages for typical user actions with the handful of available and flexible alert messages. 0683854557


Clearfix

Quickly and easily clear floated content within a container by adding a clearfix utility.


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Vertical alignment

Easily change the vertical alignment of inline, inline-block, inline-table, and table cell elements.


Visibility

Control the visibility, without modifying the display, of elements with visibility utilities. 0683854557


Approach

Learn about the guiding principles, strategies, and techniques used to build and maintain Bootstrap so you can more easily customize and extend it yourself.


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Bootstrap Containers You learned from the previous chapter that Bootstrap requires a containing element to wrap site contents.
Containers are used to pad the content inside of them, and there are two container classes available:
The .container class provides a responsive fixed width container
The .container-fluid class provides a full width container, spanning the entire width of the viewport

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What Are We Building? In this tutorial, we’ll show how to build an interactive tic-tac-toe game with React.
You can see what we’ll be building here: Final Result. If the code doesn’t make sense to you, or if you are unfamiliar with the code’s syntax, don’t worry! The goal of this tutorial is to help you understand React and its syntax.
We recommend that you check out the tic-tac-toe game before continuing with the tutorial. One of the features that you’ll notice is that there is a numbered list to the right of the game’s board. This list gives you a history of all of the moves that have occurred in the game, and it is updated as the game progresses.
You can close the tic-tac-toe game once you’re familiar with it. We’ll be starting from a simpler template in this tutorial. Our next step is to set you up so that you can start building the game.

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Visibility Control the visibility, without modifying the display, of elements with visibility utilities.

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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:

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What is HTML Web Storage? With web storage, web applications can store data locally within the user browser.
Before HTML5, application data had to be stored in cookies, included in every server request. Web storage is more secure, and large amounts of data can be stored locally, without affecting website performance.
Unlike cookies, the storage limit is far larger (at least 5MB) and information is never transferred to the server.
Web storage is per origin (per domain and protocol). All pages, from one origin, can store and access the same data.

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What is SVG? SVG stands for Scalable Vector Graphics
SVG is used to define graphics for the Web
SVG is a W3C recommendation
The HTML svg Element
The HTML svg element is a container for SVG graphics.
SVG has several methods for drawing paths, boxes, circles, text, and graphic images.