Use of Hooks in React, including useState and useEffect, and de

• Автор Aryan Agarwal 22 ноября 2023 г. - Категория Культура и искусство - #Web development Institute in Delhi  - 185 просмотров
  React is considered as the most trendy and famous library of JS because of its easy to use features. It’s not just easy to use but it is also really easy to learn too. And today in this blog we are going to cover important factors from react, so get ready to learn some really concepts in really easy way.

   

  Understanding React Basics

   

  Before we get started with the advanced features of react like useState and useEffect. Let me give you guys a brief how we work in react. You can learn more about the basics with React JS course in Delhi. So we can go dig deep into the advanced factors which will make it easy for you guys to understand it.

  • Components

  Components are the elements by which your your react apps are made up of they can be so easy to use and really complicated to understand but once you get acquainted to them and start working with them you will realise they are the best pieces of codes to work with. You can use them again and again and every component contains its own unique feature.

  • State

  State is like a magical potion that gives life to your components by storing the information with each passing time. Imagine a magical lamp that can switch between bright and dim. That's state in action. Now, let's uncover the magic behind useState and useEffect.

   

  Part 1: Casting the useState Spell

  The useState spell is like creating a magical potion that gives your components the power to remember things. Imagine having a treasure chest in your castle that can hold and remember valuable items.

  The useState spell has two parts:

  • useState(initialValue): This part creates a treasure chest with an initial item inside.
  • setTreasure(newValue): This part changes the item inside the treasure chest whenever you want. Here, the component has a treasure chest holding magic scrolls initially. When you click the button, it casts the useState spell, changing the treasure to enchanted potions.

  Part 2: using the useEffect

  The useEffect spell is like setting up magical guards around your castle. These guards watch for changes and perform actions when something happens. Imagine having a guard that lights up the castle whenever it gets dark. The useEffect spell has two parts:

  • useEffect(() => {...}, [dependencies]): This part sets up the guard and tells it what action to perform.
  • [dependencies]: This part tells the guard what changes to watch for. If anything in the dependencies changes, the guard springs into action.

  Conclusion

  Congratulations, students of web design courses in Delhi, if you are reading this in the end then I assume you must have read all the key tips I have mentioned above and now you have advanced one level in your web development journey, now we are going to revise what we have learned so far in this blog.

  • useState: Creates a state of data in your component, allowing it to remember and change values.
  • useEffect: it makes necessary changes in your state according to the changes which has been made in your state.

  I hope you understand what we have learnt so far in this bog it’s a bit complicated for the beginners to understand but by learning from experts at web development institute in Delhi. With the right guidance of experienced trainers, you can get used to these features and it will make your web development journey beyond your believes.