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React Components

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Creating components is one of the first practical skills you need to learn in React. A React application is built by combining multiple components. Each component can represent a specific part of the interface, such as a header, button, navigation bar, product card, profile, form, sidebar, or complete page. The basic process is simple: For … Read more

React Function Components

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Function components are the modern and most common way to create components in React. A function component is simply a JavaScript function that returns JSX describing the UI. For example: Here, Welcome is a function component. You can use it inside another component like this: React calls the Welcome function and uses the JSX it … Read more

React Components

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A component is one of the most important concepts in React. React applications are built by combining small, independent pieces of UI called components. Each component is responsible for describing a particular part of the interface, such as a navigation bar, button, product card, login form, sidebar, user profile, or even an entire page. Instead … Read more

React Common Errors

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React beginners often face errors while creating components, writing JSX, importing files, using hooks, or rendering data. The good news is that most React errors are easy to identify once you understand what caused them and how to fix them. This chapter covers the most common React errors you’ll encounter while learning React with Vite. … Read more

React Dynamic Attributes

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React allows you to make JSX attributes dynamic, meaning their values can come from JavaScript variables, expressions, props, state, objects, functions, or other data. In normal HTML, you might write a fixed attribute like: The image path and alternative text are written directly into the JSX. In React, you can make those values dynamic: Now … Read more

React Attributes

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JSX attributes are used to provide additional information to HTML elements and React components. They allow you to control how an element behaves, looks, and receives data. If you already understand HTML attributes such as class, id, src, href, and alt, JSX attributes will feel familiar. However, JSX follows JavaScript and React conventions, so some … Read more

React Rendering Expressions

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React allows you to use JavaScript expressions directly inside JSX to decide what should appear on the screen. These expressions are one of the most important parts of React because they allow your UI to display dynamic values instead of only static HTML. For example, instead of writing: you can store the name in a … Read more

React Logical && Rendering

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React allows you to conditionally display elements using JavaScript’s logical AND operator, written as &&. This technique is commonly called logical AND rendering or conditional rendering with &&. It is useful when you want to display something only when a condition is true. For example: When isLoggedIn is true, React renders: When isLoggedIn is false, … Read more

React Fragments

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When creating React components, you will often need to return multiple elements together. For example, you may want a component to return: However, a React component must return a single parent structure. A common solution is to wrap the elements inside a <div>: This works, but sometimes you do not actually need that extra <div> … Read more

React Inline Styles

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React allows you to apply CSS directly to JSX elements using the style attribute. This is commonly called inline styling. In regular HTML, inline CSS is written as a string: In JSX, the style attribute works differently. Instead of passing a CSS string, React expects a JavaScript object containing CSS properties and their values. At … Read more