Test your knowledge of these 6 crucial reaction skills.
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.
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.
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
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.
- 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
- The term “class” is important.
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.
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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