JavaScript Questions Blog

Modules are logical boundaries in your application and the application is divided into separate modules to separate the functionality of your application.

Discover how to prevent the default behavior of an element and stop event propagation in JavaScript using the preventDefault and stopPropagation.

In React, props and state are two concepts that are often used together to manage data within a component.

We can use the event.defaultPrevented property in the event object.

Learn how to use the useEffect hook and the window.addEventListener method to re-render a React component when the browser is resized.

Event Target is a property of an event object in JavaScript that refers to the element that triggered the event.

In JavaScript, two objects are considered equal only if they are the same object, not just if they have the same properties and values.

In this answer, we show you how to use the JSON.stringify() method in React to convert a JSON object into a formatted string that is easy to read.

Learn about the !! operator in JavaScript and its uses for truthy/falsy values, defined/undefined variables, empty arrays and value conversion.