Introduction to JavaScript Functions

The main logic of the birthday reminder application can be written in the form of functions using JavaScript. This defines logic for actions like displaying person details in the website. Let’s look into necessary functions we used in this application.

onClick()

• It allows you to handle click events on elements (like buttons).
• It's used to trigger actions when the user clicks a button or other clickable element.
• Syntax:

<button onClick={handleClick}>Click Me</button>

useState()

• It allows you to add state to functional components.
• It's used to store and update dynamic values in the component.
• Syntax:

const [state, setState] = useState(initialValue);

In the next module, we will get into the actual implementation and styling of the application.