Test your knowledge of these 6 crucial React abilities.
HTML and CSS are well-known to front-end devs. Every company needs the capacity to create user interfaces. React developers should be able to:
- Write semantic HTML tags
- CSS selectors: use and write
- Reset CSS
- Defining the box model and resetting it
- Flexbox 101
- Apply responsive web design concepts, including media queries.
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 to the library and why the React team picked it. Using React.createElement() to generate a full app is possible, but not as efficient as using HTML. Adding Markup to our template logic may seem like a step backward at first, but after a few minutes using JSX, you’ll be hooked on the style.
React provides a paradigm where your view is a state function. That’s v = f(s), which you should remember while you review library basics.
- Methods for dealing with arrays
- Functions and arrows
Every component in React is a function in some sense. Remember that ‘classes’ are really constructor functions. Whether you call them functional or class components, they all use some type of function.
- Manipulation of DOM and events
Manipulating DOM elements in React is unusual. Remember, we have the JSX abstraction now. The native event object from DOM modification in React is wrapped up in the SyntheticEvent. Make sure you can connect events like onclicks, onchange, and mouseenter to HTML elements.
- The term “this”
- Advanced and callback functions
The input/output paradigm of functional programming is based on the concept that functions may be passed around as arguments.
- Object inheritance and prototyping
- The term ‘class’ is an important one.
4. Git Every developer needs Git to store projects on GitHub, Bitbucket, and GitLab. Among the daily skills you should have are:
- Adding, committing, pushing, and pulling
- 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 Node? While you may use React in any HTML page, there are many more packages available to augment React.
The npm registry is essential knowledge for React developers. Software developers may go here to obtain 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 of the issues that it accepts. npm has been following Yarn’s patterns and practices.
Hot topic alert: React has state management. Many developers have been stung by the asynchronous nature of state changes and how React handles them. Redux was created for this and scalability. Redux is a state management tool. It’s not a framework, but an approach to data. Redux is based on functional programming and immutability, but it is not a one-size-fits-all solution. Prior to getting into Redux, it’s important to master React’s basic ideas.
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