A higher-order component (HOC) is an advanced technique in React for reusing component logic. parent component by including the Create a constructor function in the Car component, and add a color property:Another way of handling component properties is by using Props are like function arguments, and you send them into the component as attributes.Use an attribute to pass a color to the Car component, and use it in the Components are like functions that return HTML elements.Components are independent and reusable bits of code. Element names that start with a lowercase letter refers to built in components (or HTML elements) such as div and span tags.In React, names starting with a capital letter will compile to the createComponent method.

preferred in this tutorial.Once again your React application has a Car component.Refer to the Car component as normal HTML This makes the component easier to configure (and reuse) as only an abbreviated key is required instead of the full component name. Keep in mind the value assigned can be a component or class reference, not just a string.The component can then be imported and used as shown below. W3Schools is optimized for learning, testing, and training. They serve the same purpose as JavaScript functions, Here is the same example as above, but created using a Function component instead.A Function component also returns HTML, and behaves pretty much the same way The constructor function is also where you honor the inheritance of the What happens when you need a more elegant solution for conditionally rendering these though?If and switch statements can do the job fine for a predefined list of components, but what if you want to set it directly based on a prop passed into the parent component?Your initial idea may be to do something similar to what is shown below. I'm building some React components and sometimes would like to log to the console the type of component that's being rendered, by displayName, which JSX uses when displaying the name of a component.. From the context of a component, how can I access the displayName property?. Adding a Ref to a Class Component . as a Class component, but Class components have some additions, and will be

The component has to include the extends React.Component statement, this statement creates an inheritance to React.Component, and gives your component access to React.Component's functions..

The simplest way to define a component is to write a JavaScript function:This function is a valid React component because it accepts a single “props” (which stands for properties) object argument with data and returns a React element. this tutorial we will concentrate on Class components.When creating a React component, the component's name must start with an This wont work and will cause a compiler error.You can’t use a general expression to do this, its not how JSX works. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. So with that in mind, the correct solution is to assign the name value to a capitalized variable (see below).Another technique I like to use is mapping child components in an object. end with the statement To be able to use the Car component, you have to import the file in your In React components, code reuse is primarily achie… To use this component in your application, use similar syntax as normal HTML: To define a React component class, you need to extend React.Component:The only method you must define in a React.Component subclass is called render(). literally just a function that takes some props as argument can be used as if it's an instance of a component class, without ever writing a class) can also be given state, through the use of hooks. The component also requires a render() method, this method returns HTML.