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What is React? in REACT

Practice



React is a JavaScript frontend library developed by Facebook in 2011
● At its core is a component-based approach that lets you build reusable UI
blocks
● It is used to build complex interactive UIs for web and mobile
development

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Lectures and tutorial on "Scripting client side JavaScript, jqvery, BackBone"

Terms: Scripting client side JavaScript, jqvery, BackBone

javascript single page client
JS Memory Management
Introduction to JavaScript
Alternative browser technologies
Books on JS, HTML / CSS
JavaScript Reference and Specs
Installing browsers, JS-console
Support for older javascript browsers
Hello World!
Code structure JavaScript
Javascript variables
Variable names in javascript
Introduction to data types
Key operators
Comparison Operators and Boolean Values
Bitwise operators
User interaction: alert, prompt, confirm
Conditional operators: if
Logical operators
While, for loops
Break and continue directives
Switch design
Javascript functions
Recursion stack
Methods and properties
All together: JavaScript features
Strict mode, "use strict"
Javascript code style
How to write unsupported code? in javascript
Debug Chrome Browser
Strings in javascript
Numbers
Type conversion for primitives
Objects as associative arrays
Arrays with numeric indices
Arrays: methods
Date and time
Function is value
Function Declaration and Function Expression
Named Functional Expressions
Global object
Closures inside functions
Data storage in the circuit modules
Static variables
Construction "with"
The pseudo-array of arguments
Named Arguments
Own objects: constructors and methods
This context is in the details.
Reception programming "Decorator"
Object conversion: toString and valueOf
Typeof, [[class]] and duck typing
setTimeout and setInterval
Clone setTimeout and setInterval
setImmediate
Binding a function to an object and carring: "bind / bindLate"
Late bindLate binding
AJAX Asynchronous JavaScript
JAVASCRIPT and jquery questions and answers to the interview
Questions and answers for interviews frond-end developer Javascript
Grunt is a tool to build javascript projects.
Gulp.js - the stream collector of projects on JS.
Introduction to unit testing javascript code
Javascript beautiful coding style
JSON Jquery sending data using AJAX
Drag and drop Drag and drop jQuery items
Sort items Sortable interaction
Element selection — Selectable interaction
Scaling Elements - Resizable Interaction
Effects of jQuery UI Color Animation, Class Based Animation
An example of dragscroll is dragging and dragging with a mouse. JavaScript Scroll by Dragging
How to install Gulp.js in Windows
Modules in javascript. Template Module. And its formats: CommonJS, AMD, UMD
Optimising graphics for the web
Vue application architecture implementation options
What's new in ECMAScript 6. Destructuring assignment, spread and rest operators
Understanding the critical rendering path
Event Loop, how the event loop works in the Chrome browser
Purpose, syntax and examples of generators in php (yield)
Flux: The architecture of React.js applications
Does jQuery's SlideUp/SlideDown have a Step property? How can you replace or emulate slideUp with animate?
CSS link scaling doesn't work in Chrome, but works in Opera
How do you select an element with two classes in jquery?
jquery.min.map 404 (Not Found) error in Chrome
top doesn't work Uncaught TypeError: Cannot read property top of undefined offset
how do you open the javascript debug console in safari?
why the :Hover pseudo-class doesn't work
$ (id).remove() doesn't work in JQuery
Live click fires several times
There is an engine called DataWave CMS — the theme's css and js files, the main one with all the scripts, get overwritten for some reason
Backbonejs does not return all the models into the collection
ie 8 left float does not work and margin 0, auto does not centre things
Highcharts. Installation and a configuration example
Verbal expressions instead of regular ones invariably simplify coding in PHP and Javascript
how to select an element by class in JavaScript with getElementsByClassName and set its width without jquery
How to pass data from a child popup window to the parent window in JavaScript
How to strip all urlencode characters in JavaScript
Printing without a confirmation dialog in javascript, Mozilla
how do you detect a browser tab being closed in javascript while excluding navigation within the site?
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What is React? in REACT
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How to create components in React? in REACT
When to use a class component over a function component? in REACT
What are pure, smart and dumb components? in REACT
What are props in React? in REACT
What is the difference between state and props in REACT?
Why shouldn't we update state directly in REACT?
What is the purpose of the callback function as an argument to setState() in REACT?
What is the difference between HTML and React event handling in REACT?
How do you bind methods or event handlers in JSX callbacks in REACT?
How do you pass a parameter to an event handler or callback in REACT?
What are synthetic events in React?
What are inline conditional expressions in REACT?
What are "key" props and what are they used for in arrays of elements in REACT?
What are refs good for? in REACT
How do you create refs? in REACT
What are forward refs? in REACT
Which is preferable, callback refs or findDOMNode()? in REACT
Why are String Refs legacy? in REACT
What is the Virtual DOM? in REACT
How does the Virtual DOM work? in REACT
What is the difference between the Shadow DOM and the Virtual DOM? in REACT
What is React Fiber? in REACT
What is the main goal of React Fiber? in REACT
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What is the difference between createElement and cloneElement? in REACT
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How do you create a props proxy for an HOC component? in REACT
What is context? in REACT
What is the children prop? in REACT
How and why to write comments in React?
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What is reconciliation? in REACT
How to set state with a dynamic key name? in REACT
What is a common mistake that calls a function every time a component renders? in REACT
Does the lazy function support named exports? in REACT
Why does React use className over the class attribute?
What are fragments? in REACT
Why are fragments better than container elements? in REACT
What are portals in React? in REACT
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What are stateful components? in REACT
How do you validate props in React? in REACT
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What are the limitations of React? in REACT
What are error boundaries in React v16? in REACT
How are error boundaries handled in React v15? in REACT
What are the recommended ways of doing static type checking? in REACT
What is the purpose of the react-dom render method? in REACT
What is ReactDOMServer? in REACT
How to use innerHTML in React? in REACT
How to use styles in React? in REACT
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What is the impact of using indexes as keys? in REACT
is it good to use setState() in the componentWillMount() method? in REACT
What happens if you use props in the initial state? in REACT
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Why should we be careful when spreading props on DOM elements? in REACT
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Which lifecycle methods will be deprecated in React v16? in REACT
What is the purpose of the getDerivedStateFromProps() lifecycle method? in REACT
What is the purpose of the getSnapshotBeforeUpdate() lifecycle method? in REACT
Do Hooks replace render props and higher-order components? in REACT
What is the recommended way to name components? in REACT
What is the recommended ordering of methods in a component class? in REACT
What is a switching component? in REACT
Why do we need to pass a function to setState()? in REACT
What is strict mode in React? in REACT
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Which pointer events (Pointer Events) are supported in React? in REACT
Why must component names start with a capital letter? in REACT
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Can you force a component to re-render without calling setState? in REACT
What is the difference between super() and super(props) in React using ES6 classes? in REACT
How do you loop inside JSX? in REACT
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How do you conditionally apply class attributes? in REACT
What is the difference between React and ReactDOM? in REACT
Why is ReactDOM separate from React? in REACT
How do you use the React label element? in REACT
How do you merge multiple inline style objects? in REACT
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js call function by name as string
Resistor–transistor logic RTL
How do you keep a value between calls to the same module in webpack?
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Firebase Web Push notifications using JavaScript and PHP, with large images
The service worker lifecycle: using the cache and receiving push notifications
Optimising events in JavaScript: debouncing and throttling
WebAssembly ( Wasm ) — a portable binary code format
Building PWA web applications
Prototype-based programming and inheritance
The evolution of HTML generation. A full comparison of SSR, CSR, Hybrid, HTMX, Inertia
Hydration of a static web page
UI update strategies on the frontend: Optimistic UI, Pessimistic UI, Real-time, Eventual Consistency, Stale-While-Revalidate (SWR), Offline-first, Loading / Skeleton UI, Server-driven UI