6 React Web Developer Skills

React is the ideal front-end library today. As a result, many companies see React as an important talent. Facebook’s popular JavaScript library requires React developers to level up or verify their capabilities.

Test your knowledge of these 6 crucial reaction skills.

1.HTML+CSS

HTML and CSS are familiar to front-end developers. Every business needs the ability to create user interfaces. React developers should be able to:

  • Write semantic HTML tags
  • CSS selectors: use and write
  • Reset CSS
  • Set box model and reset
  • Flexbox 101
  • Apply responsive web design concepts including media queries.

2.JSX

React never touches HTML. You work with JSX, an excellent syntactical extension of the React ecosystem. JSX is an HTML flavored JavaScript. The wonderful thing about JSX is that it works like HTML and CSS.

JSX is a wrapper over React.createElement(). The API would be too complex to use in terms of scalability, which is why it is crucial for the library and why the React team chose it. Using React.createElement() to generate a complete application is possible, but not as efficient as using HTML. Adding markup to our template logic might seem like a step backwards at first, but after a few minutes of using JSX you’ll be hooked on the style.

3.JavaScript Plus ES6

You need to know ES6 to rock React, but you also need to know JavaScript fundamentals.

Knowing when and where to get data is essential. Variables are a JavaScript feature that allows us to store data in memory and retrieve it later in our applications.

React provides a paradigm where your view is a state function. This is v = f(s), which you should remember when reviewing the basics of the library.

  • Array Processing Methods

It’s one thing to store and access data in arrays and objects. It’s another to modify the data appropriately. Built-in JavaScript array methods are essential for developers. Focus.on.the.map,.filter and.reduce.

Every component of React is a function in some sense. Remember that “classes” are actually constructor functions. Whether you call them functional components or class components, they all use some type of function.

  • DOM and event manipulation

Manipulating DOM elements in React is unusual. Remember, we now have the JSX abstraction. The native event object of the DOM change in React is wrapped in the SyntheticEvent. Make sure you can hook events like onclicks, onchange and mouseenter to HTML elements.

The ‘this’ keyword is often overused in JavaScript. Think of ‘this’ as a pointer. For example, you can use the keyword ‘this’ to refer to an object without naming it.

  • Advanced and reminder functions

The input/output paradigm of functional programming is based on the concept that functions can be passed as arguments.

  • Object inheritance and prototyping

In many ways, React lends itself to functional programming. But you work in the domain of classes and therefore of the creation of objects. If you understand how the prototype chain works in JavaScript, you understand how inheritance works in JavaScript. JavaScript has no conventional classes. It’s basically syntactic sugar on top of the object prototype chain.

  • The term “class” is important.

JavaScript classes are not the same as conventional classes. Formal JavaScript logic and even components (styles) are created as classes. Components are the building blocks of every React application, and there are only two ways to write them: as a function or as a class.

4. Git Every developer needs Git to store projects on GitHub, Bitbucket, and GitLab. Among the daily skills you should have are:

  • Add, validate, push and pull
  • Branches and mergers
  • Consolidation issues

5. A combination of Node and npm

Node may surprise some. Why would a client-side React developer need to know about Node? Although you can use React in any HTML page, there are many other packages available to augment React.

The npm registry is essential knowledge for React developers. Software developers can go here to get software to help them create software. That’s all npm is: a cloud for packages we call dependencies.

  • Comparison of Yarn and Node.js

Yarn is a package manager that uses the npm registry. Yarn improves npm workflows. The Node/npm ecosystem accepts Yarn as a solution to many problems it accepts. npm followed Yarn patterns and practices.

6.Redux

Hot topic alert: React has state management. Many developers have been stung by the asynchronous nature of state changes and the way React handles them. Redux was created for this and scalability. Redux is a state management tool. It is not a framework, but an approach to data. Redux is based on functional programming and immutability, but it’s not a one-size-fits-all solution. Before getting into Redux, it is important to master the basic ideas of React.

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