Conditional Rendering in React JS

Conditional rendering is a common pattern in web development where certain components or elements are rendered based on certain conditions. In React JS, conditional rendering can be achieved using the “if-else” statements, ternary operators, and the && operator. This article will explore how to use these methods for conditional rendering in React JS.

If-Else Statements

In React JS, we can use if-else statements to conditionally render components. Here’s an example:

“`jsx
import React from ‘react’;

const ConditionalComponent = ({ isLoggedIn }) => {
if (isLoggedIn) {
return

Welcome, User!

;
} else {
return

Please log in to continue.

;
}
};

export default ConditionalComponent;
“`

Ternary Operator

The ternary operator is another way to achieve conditional rendering in React JS. Here’s an example:

“`jsx
import React from ‘react’;

const ConditionalComponent = ({ isLoggedIn }) => {
return (

);
};

export default ConditionalComponent;
“`

Logical && Operator

Another method for conditional rendering in React JS is using the logical && operator. Here’s an example:

“`jsx
import React from ‘react’;

const ConditionalComponent = ({ isLoggedIn }) => {
return (

);
};

export default ConditionalComponent;
“`

Conclusion

Conditional rendering is a powerful feature in React JS that allows developers to create dynamic user interfaces. By using if-else statements, ternary operators, and the && operator, we can conditionally render components based on different conditions. This flexibility makes React JS a popular choice for building dynamic web applications.