React Context | react context example #viral #viralvideo #reactjstutorial

React Context | react context example

Description:
Welcome to this video from tutorialsinhand.com. In this video we are going to discuss on context in react.

React Context
In react, props stands for “properties”. It is an object where the value of attributes of a tag is stored. Props are like arguments of functions in JavaScript or like that of attributes in HTML. Props are read-only in nature and thus they shouldn’t be mutated. Props are mainly used to pass data from one component to another in React to create dynamic content.

But with this there comes a major challenge. Suppose you have a component name “A” which is required to send some data to another component C. In such cases, “A” will have to send data as props to its child component “B”. Component “B” going to accept this data and send it as props to its child component “C”. So even though, component “B” need not to access the data, but it has to accept data as arguments to pass it to its children. Here, we have taken a 3 level example, but it can occur in multiple levels in a real world application. This is called “Prop drilling”. Context just solves this problem.


In React, context provides a way to pass data through component tree without “prop drilling” in every child component. It creates a global data which can be consumed from any component, irrespective of its depth in the component tree.


React context can be implemented in 3 simple steps.
Creating Context
Providing Context
Consuming Context

Class Component in React: https://youtu.be/PENd-TUTCO8
Functional Component in React: https://youtu.be/CJLIh0e0-VI
Props in React: https://youtu.be/WoZnT1FbeAM
Props Validation in React: https://youtu.be/UoiRWq7FnOA
JSX / TSX: https://youtu.be/eSsaNXhqEQU

Article URL: Yet to Publish

Timer:
00:00 – Introduction
00:11 – Necessity of React Context
03:21 – React Context and Implementation
04:22 – Creating Context Theory
04:50 – Creating Context Code Example
06:59 – Providing Context Theory
07:26 – Providing Context Code Example
10:06 – Consuming Context Theory
10:37 – Consuming Context Code Example
13:46 – Code Output in Browser
14:58 – Thanking audience


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