ReactJS
For Frontend / Scripting
You’ll develop a strong understanding of React’s most essential concepts.
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Created by a Facebook software engineer, Jordan Walke to handle Facebook ads in 2011, React is a declarative, dynamic, flexible, and open-source JavaScript library. React helps in developing complex user interfaces (UIs) from individual pieces of code called components. These components give life to our visualizations on the screen.
Unlike other UI frameworks like Angular and Vue, React automatically re-renders and updates components based on data changes. Hence, with React quick loading and greater UI manipulation is possible, enabling faster and cost-effective web and mobile applications.
The framework toolkit with its rich libraries (like Connectivity) many more driving forces of Iot which are beneficial for our success and innovation , Advance analytics, Marketing boards . The technology of interconnection various devices helpful to us in increase in sensors; cloud and big data, and the convergence of the Internet .
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Hooks are a new functionality that was introduced in React 16.8. You can use state and other React capabilities without having to write a class. Hooks are React state and lifecycle features from function components that "hook into" hooks. It does not work in a classroom setting. Hooks are backward-compatible, which means they don't provide any new features. It also doesn't take the place of your understanding of React ideas.
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A map is a data collection type where data is stored in the form of pairs. It contains a unique key. The value stored in the map must be mapped to the key. We cannot store a duplicate pair in the map(). It is because of the uniqueness of each stored key. It is mainly used for fast searching and looking up data. In React, the ?map? method used to traverse and display a list of similar objects of a component. A map is not the feature of React. Instead, it is the standard JavaScript function that could be called on any array. The map() method creates a new array by calling a provided function on every element in the calling array.