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Phases of Lifecycle Component in React JS

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Phases of Lifecycle Component in React JS

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  1. Phases of Lifecycle Component in React JS

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  3. What is ReactJS React js is a front-end programming language used for developing user interfaces and web applications. It was created by Jordan Walke, a software engineer at Facebook. React js is a JavaScript library that lets you create reusable components so that your code is easy to read and maintain. When you create a new React component, you need to consider the lifecycle of that component.

  4. The life cycle of a React component consists of four phases 1. Initial Phase 2. Mounting Phase 3. Updating Phase 4. Unmounting Phase Understanding the life cycle of a React component is essential to effectively utilizing the platform.

  5. Utilizing these four phases appropriately can help create powerful applications while keeping code clean and efficient. 1. Initial Phase: React will set up the methods and variables necessary for the component. During the initialization phase of a component, developers must set up the default properties (props) and state for that component. `Props` are pieces of information that are passed from outside to inside the component, while `state` refers to data that is tracked within the component itself. 2. Mounting Phase: This is the process of inserting a component into the DOM, which then displays on the user's browser. It's a key task, as incorrect implementation during this step can lead to many potential errors.

  6. 3. Updating Phase: React will keep track of any changes made to properties and state that were passed into a component and determine whether or not changes need to be applied. As such, it is key to understand precisely how a component’s updating phase works within the given architecture. 4. Unmounting Phase: It will remove all page elements associated with this specific component thus cleaning up all references made by React. Utilizing these four phases appropriately can help create powerful applications while keeping code clean and efficient.

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