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React contexts
React contexts














The difference between the two options above is if you want the context to be a single nested property by this name, to explode it to its properties (which in my opinion is more convenient). Create a folder under your app root named contexts (not required.Sometimes people use shared state across nested components instead of just passing it as props.Īnd if you do need it you should follow these very few steps: How do I implement Context API in my app?"įirst, make sure you need it. You might think to yourself: "Well, I'm convinced.

#REACT CONTEXTS HOW TO#

If you are comfortable with using reducers and actions and don't find hindering than you may also create reducers and actions that wrap Context API as the store as Redux's author Dan Abramov explained in his medium article about whether Redux is always required How to use Context API?

react contexts

  • Using Context API we can define several unrelated contexts (stores) and use each in its proper place in the app.
  • One of the significant advantages of React's one-way data binding is that it's easy to understand - A component passes state to its children.
  • Overhead - Why should I create/update 3 files just to add one tiny feature?.
  • Simplicity - When using redux people tend to manage almost all of their state in redux and it causes 2 problems: However, Redux has its disadvantages, and that's why it's important to know what Context API gives us that Redux doesn't: Actually, it answered this need so well that it came to be known that you can't be a "true" React developer if you don't know your way around Redux. Redux is great and came perfectly to answer the need for state management. More information can be found on React's documentation page Context API will replace redux? It will hold the "store" and be the parent of all the components that might need that store.Ĭonsumer as it so happens is a component that consumes and uses the state. Provider is a component that as it's names suggests provides the state to its children. Context is also touted as an easier, lighter approach to state management using Redux.Ĭontext API is a (kind of) new feature added in version 16.3 of React that allows one to share state across the entire app (or part of it) lightly and with ease. This is the alternative to "prop drilling" or moving props from grandparent to child to parent, and so on. The React Context API is a way for a React app to effectively produce global variables that can be passed around. The Context API is a React structure that enables you to exchange unique details and assists in solving prop-drilling from all levels of your application. React context API, In this article you will explore what is Context API and how to use it in your React project.














    React contexts