This is the first half of a presentation I gave at Squares Conference 2015 where I provided a brief introduction to React JS, then did live coding for 20 minutes to show more of the specifics of usage. Your milage may vary as the live code part was where the bulk of the teaching happened!
In this presentation, Prashant Sharma of Valuebound has talked about ReactJS - a JavaScript library for building user interfaces. Check out the agendas to know what is there for you.
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Get Socialistic
Our website: http://valuebound.com/
LinkedIn: http://bit.ly/2eKgdux
Facebook: https://www.facebook.com/valuebound/
Twitter: http://bit.ly/2gFPTi8
Introduction to React in combination with Redux. Redux helps you to develop applications in a simple way while having features like time-travel available during development.
This is the first half of a presentation I gave at Squares Conference 2015 where I provided a brief introduction to React JS, then did live coding for 20 minutes to show more of the specifics of usage. Your milage may vary as the live code part was where the bulk of the teaching happened!
In this presentation, Prashant Sharma of Valuebound has talked about ReactJS - a JavaScript library for building user interfaces. Check out the agendas to know what is there for you.
----------------------------------------------------------
Get Socialistic
Our website: http://valuebound.com/
LinkedIn: http://bit.ly/2eKgdux
Facebook: https://www.facebook.com/valuebound/
Twitter: http://bit.ly/2gFPTi8
Introduction to React in combination with Redux. Redux helps you to develop applications in a simple way while having features like time-travel available during development.
Explanation of the fundamentals of Redux with additional tips and good practices. Presented in the Munich React Native Meetup, so the sample code is using React Native. Additional code: https://github.com/nacmartin/ReduxIntro
Getting started with the reactjs, basics of reactjs, introduction of reactjs, core concepts of reactjs and comparison with the other libraries/frameworks
An Introduction to ReactJS, A JS Library for building user interfaces developed by Facebook Team, also this presentation introduce what is the ReduxJS Library and how we can use it with ReactJS.
Tutorial Videos: https://www.youtube.com/playlist?list=PLD8nQCAhR3tQ7KXnvIk_v_SLK-Fb2y_k_
Day 1 : Introduction to React, Babel and Webpack
Prerequisites of starting the workshop ( Basic understanding of Node & Express )
What is Virtual DOM?
What is React and why should we use it?
Install and set up React:
a-Using create-react-app
b-From scratch using Babel and Webpack. We will use Webpack Dev Server.
Day 2 : React Basic Concepts
Types of Components: Class-based and Functional based Components
Use of JSX
Parent, Child, and Nested Components
Difference between State and Props
Create and Handle Routes
Component Lifecycle Methods
Create a form and handling form inputs
Use of arrow functions and Spread Operator
Day 3: Advanced Concepts in React
Use of Refs
What are Higher Order Components( HOC )?
How to use HOC
Understanding Context in React
ReactJS is arguably the most popular Javascript framework around for web development today. With more and more teams exploring and adopting React, here is TechTalks presentation elaborating fundamentals of React, in a code along session
Learn how to develop front-end JavaScript web applications using React and Redux for the application architecture. Immutability and one-way data binding at it's finest. Focus on components and state management without all the hassle.
Code examples available here: https://github.com/kinabalu/mysticpaste_react_example
State is managed within the component in which variables declared in function body. State can be changed. State can be accessed using “useState” Hook in functional components and “this.state” in class components. Hook is a new feature in react. To use this expression it’s essential to have good understanding of class components. State hold information that used for UI by browser.
https://www.ducatindia.com/javatraining/
At Lia Infraservice we create Dynamic Websites. Become a front-end React JS developer and be a part of our tech-savvy Web App Development Company in Chennai.
A library for building user interfaces
Designed for View layer
Created by Facebook/Instagram developers
Build reusable & Interactive UI components
Renders your UI and respond to events
Explanation of the fundamentals of Redux with additional tips and good practices. Presented in the Munich React Native Meetup, so the sample code is using React Native. Additional code: https://github.com/nacmartin/ReduxIntro
Getting started with the reactjs, basics of reactjs, introduction of reactjs, core concepts of reactjs and comparison with the other libraries/frameworks
An Introduction to ReactJS, A JS Library for building user interfaces developed by Facebook Team, also this presentation introduce what is the ReduxJS Library and how we can use it with ReactJS.
Tutorial Videos: https://www.youtube.com/playlist?list=PLD8nQCAhR3tQ7KXnvIk_v_SLK-Fb2y_k_
Day 1 : Introduction to React, Babel and Webpack
Prerequisites of starting the workshop ( Basic understanding of Node & Express )
What is Virtual DOM?
What is React and why should we use it?
Install and set up React:
a-Using create-react-app
b-From scratch using Babel and Webpack. We will use Webpack Dev Server.
Day 2 : React Basic Concepts
Types of Components: Class-based and Functional based Components
Use of JSX
Parent, Child, and Nested Components
Difference between State and Props
Create and Handle Routes
Component Lifecycle Methods
Create a form and handling form inputs
Use of arrow functions and Spread Operator
Day 3: Advanced Concepts in React
Use of Refs
What are Higher Order Components( HOC )?
How to use HOC
Understanding Context in React
ReactJS is arguably the most popular Javascript framework around for web development today. With more and more teams exploring and adopting React, here is TechTalks presentation elaborating fundamentals of React, in a code along session
Learn how to develop front-end JavaScript web applications using React and Redux for the application architecture. Immutability and one-way data binding at it's finest. Focus on components and state management without all the hassle.
Code examples available here: https://github.com/kinabalu/mysticpaste_react_example
State is managed within the component in which variables declared in function body. State can be changed. State can be accessed using “useState” Hook in functional components and “this.state” in class components. Hook is a new feature in react. To use this expression it’s essential to have good understanding of class components. State hold information that used for UI by browser.
https://www.ducatindia.com/javatraining/
At Lia Infraservice we create Dynamic Websites. Become a front-end React JS developer and be a part of our tech-savvy Web App Development Company in Chennai.
A library for building user interfaces
Designed for View layer
Created by Facebook/Instagram developers
Build reusable & Interactive UI components
Renders your UI and respond to events
React is a JavaScript library for building user interfaces. It is maintained by Facebook and a community of individual developers and companies. React can be used as a base in the development of single-page or mobile application
react-slides.pdf gives information about react libraryjanet736113
React is a framework that employs Webpack to automatically compile React, JSX, and ES6 code while handling CSS file prefixes. React is a JavaScript-based UI development library. Although React is a library rather than a language, it is widely used in web development. The library first appeared in May 2013 and is now one of the most commonly used frontend libraries for web development.
React offers various extensions for entire application architectural support, such as Flux and React Native, beyond mere UI,When compared to other technologies on the market, React is a new technology. Jordan Walke, a software engineer at Facebook, founded the library in 2011, giving it life. The likes of XHP, a straightforward HTML component framework for PHP, have an influence on React. React's newsfeed was its debut application in 2011. Later, Instagram picks it up and incorporates it into their platform,
Advantages
Makes use of the JavaScript structure known as virtual DOM. Since JavaScript's virtual DOM is quicker than the conventional DOM, this will boost the speed of programs.
Can be used with various systems and on both client and server sides is commendable.
Components and identify trends make larger apps easier to manage by increasing clarity.
Limitations
Only addresses the app's angle and distance; as a result, additional techniques must be selected if you want a full collection of development tools.
Employs inline scripting and JSX, which some programmers might find uncomfortable.
ClojureScript - Making Front-End development Fun again - John Stevenson - Cod...Codemotion
Front-end development has an amazing assortment of libraries and tools, yet it can seem very complex and doest seem much fun. So we'll live code a ClojureScript application (with a bit of help from Git) and show how development doesn't have to be complex or slow. Through live evaluation, we can build a reactive, functional application. Why not take a look at a well designed language that uses modern functional & reactive concepts for building Front-End apps. You are going to have to trans-pile anyway, so why not use a language, libraries and tooling that is bursting with fun to use.
Fundamental Concepts of React JS for Beginners.pdfStephieJohn
Let’s look into the Fundamental concepts of React Js for beginners by Lia Infraservices – The top Mobile App Development Company in Chennai. React is a front-end open source JavaScript library for creating user interfaces (UI) components. Complex user interfaces are broken down into small “components,” which are separate pieces of “reusable codes”.
Ever wondered what React.js or its more common term ‘React’ is and why there is such a buzz about it in the software development community? Well, React is an open-source JavaScript framework and library developed by Facebook and it’s used for building interactive user interfaces and web applications quickly and efficiently with significantly less code than you would with vanilla JavaScript. But we are sure, this won’t be enough for you and to know more about React and learn about its amazing features, GDSC NIT Silchar brings its next session “KICKSTART TO REACT” where we will explore React and how it can be used to build modern and interactive UI websites.
React and its component structure
● What are Hooks?
● React Hooks and their capabilities
● Migrating Your Existing Apps to React Hooks
● Combine Existing React Hooks into New Custom Hooks
● Benefits of using React Hooks
● Best Practices
Redux and context api with react native app introduction, use cases, implemen...Katy Slemon
Learn how to build an app using Redux and Context API with React Native. In this tutorial, we will compare and learn how to Implement both these techs.
Similar to React JS & Functional Programming Principles (20)
Create ReactJS Component & publish as npm packageAndrii Lundiak
How to prepare your (provider) ReactJS component and let your friends (consumer) to use it.
What issues you may face with Babel, Webpack, Eslint, Node, npm.
When to use “npm link” approach and “npm publish” approach.
What else to read and to try.
Presentation about how to work with #GruntJS - Collection of "grunt contrib packages/modules usage examples" to work with on any project or get started during study.
A few words about:
- requirements, types of req., artifacats
- sketching, wireframing, mockup, prototype
- UI vs. UX with examples from own experience
- URl with info, Suggested tools.
Comparing Drupal CMS with Raw PHP coding. Presentation for AISEC conference ItEvent09 - http://aiesec-if.in.ua/news/88-it-event-anounce
inspired by Drupal Camp 2009 (http://camp09.drupal.ua/)
Multi-cluster Kubernetes Networking- Patterns, Projects and GuidelinesSanjeev Rampal
Talk presented at Kubernetes Community Day, New York, May 2024.
Technical summary of Multi-Cluster Kubernetes Networking architectures with focus on 4 key topics.
1) Key patterns for Multi-cluster architectures
2) Architectural comparison of several OSS/ CNCF projects to address these patterns
3) Evolution trends for the APIs of these projects
4) Some design recommendations & guidelines for adopting/ deploying these solutions.
This 7-second Brain Wave Ritual Attracts Money To You.!nirahealhty
Discover the power of a simple 7-second brain wave ritual that can attract wealth and abundance into your life. By tapping into specific brain frequencies, this technique helps you manifest financial success effortlessly. Ready to transform your financial future? Try this powerful ritual and start attracting money today!
ER(Entity Relationship) Diagram for online shopping - TAEHimani415946
https://bit.ly/3KACoyV
The ER diagram for the project is the foundation for the building of the database of the project. The properties, datatypes, and attributes are defined by the ER diagram.
1.Wireless Communication System_Wireless communication is a broad term that i...JeyaPerumal1
Wireless communication involves the transmission of information over a distance without the help of wires, cables or any other forms of electrical conductors.
Wireless communication is a broad term that incorporates all procedures and forms of connecting and communicating between two or more devices using a wireless signal through wireless communication technologies and devices.
Features of Wireless Communication
The evolution of wireless technology has brought many advancements with its effective features.
The transmitted distance can be anywhere between a few meters (for example, a television's remote control) and thousands of kilometers (for example, radio communication).
Wireless communication can be used for cellular telephony, wireless access to the internet, wireless home networking, and so on.
2. Agenda
● Immutability & ReactJS
● JS Function vs. ReactJS Functional Component & ReactJS Hooks
● First-Class & High-Order terms
● Memoizing
TODO:
● Lambda Calculus
● Avoid shared state
● Avoid side effects
● Strict/non-strict evaluation
3. Functional Programming
Functional programming is the process of building software by composing pure functions,
avoiding shared state, mutable data, and side-effects.
“In computer science, functional programming is a programming paradigm that treats computation as
the evaluation of mathematical functions and avoids state and mutable data. It emphasizes the
application of functions, in contrast to the imperative programming style, which emphasizes changes in
state. Functional programming has its roots in the lambda calculus, a formal system developed in the
1930s to investigate function definition, function application, and recursion.” Wiki.
6. Function & ReactJS functional component
// JavaScript
function add(a, b) { return a + b; }
// ReactJS
export function FunctionalAddComponent(props) { // aka stateless function
const { a, b } = props;
return ( <div>{a + b}</div> );
}
// When it is “broken” functional component?
7. Pure function vs. Pure component
● “If your React component’s render() function renders the same result given the same props and
state, you can use React.PureComponent for a performance boost in some cases.”
● “Hooks let you use more of React’s features without classes.Conceptually, React components
have always been closer to functions. Hooks embrace functions, but without sacrificing the
practical spirit of React. ”. Details.
8. First-Class & High-Order terms
1. In Math: High-Order function
2. In Programming: First-class function , MDN details.
● “First-class functions - functions which can be as arguments to other functions, returning them as the
values from other functions, and assigning them to variables or storing them in data structures”
● “First-class functions are a necessity for the functional programming style, in which the use of higher-order
functions is a standard practice.”
● JS: first-class/higher-order functions : filter(), map() and reduce(). Details.
● “We can also look at closures as first-class functions with bound variables. ”. Details.
● “setTimeout is of arity 2, or equivalently say that is a binary function”. Details.
9. High Order ReactJS Component
JavaScript:
// A Higher-Order Function is a FUNCTION that takes another FUNCTION as an input, returns
a FUNCTION or does both.
ReactJS:
// A Higher-Order Component is a FUNCTION that takes a COMPONENT and returns a new
COMPONENT.
“HOC doesn’t modify the input component, nor does it use inheritance to copy its behavior. Rather, a HOC composes the original
component by wrapping it in a container component. A HOC is a pure function with zero side-effects.”. Details. Users/Stocks
ReactJS example.
// When it is “broken” HOC component?
11. Currying, Derivative, Calculus
● Currying. “In mathematics and computer science, currying is the technique of translating the
evaluation of a function that takes multiple arguments into evaluating a sequence of functions,
each with a single argument. ”
● Derivative. “In other words, every value of x chooses a function, denoted fx
, which is a function of
one real number”. x => f(x) . Also related to Calculus.
● Function Composition - f( g( h(x) ) )
● TODO: Lambda Calculus
12. Currying in JavaScript
// JavaScript
const notCurry = (x, y, z) => x + y + z; // a regular function
const curry = x => y => z => x + y + z; // a curry function
// ReactJS
const reverse = PassedComponent => ({ children, ...props }) => (
<PassedComponent {...props}>
{children.split("").reverse().join("")}
</PassedComponent>
);
// Redux
export const withMiddleware = store => next => action => {
// do something, next(action) or state.dispatch();
}
13. Memoization
● “Memoization - storing the results of expensive function calls and returning the cached result
when the same inputs occur again.”
● “React memo() - s a higher order component. It’s similar to React.PureComponent but for
function components instead of classes. If your function component renders the same result
given the same props, you can wrap it in a call to React.memo for a performance boost in some
cases by memoizing the result. This means that React will skip rendering the component, and
reuse the last rendered result".
●
Good expl
https://logrocket.com/blog/pure-functional-components/
16. ReactJS tech/code outcomes
● ReactJS combines many things, is very flexible and allows you to choose, what suits you
best.
● Don’t mutate this.props from components inside
● Don’t mutate this.state this.state directly.
● It matters for debugging how you name your function, component, wrapping and wrapped
components.