ArticleZip > Access Event To Call Preventdefault From Custom Function Originating From Onclick Attribute Of Tag

Access Event To Call Preventdefault From Custom Function Originating From Onclick Attribute Of Tag

When building websites or web applications, you may come across the need to handle click events on elements such as buttons or links. Understanding how to access the event object, call the `preventDefault()` method, and work with custom functions originating from the `onclick` attribute can be a valuable skill for any software engineer or web developer.

To access the event object and prevent the default behavior in a click event, you'll first need to define a function that handles the click event when the element is clicked. This function can be assigned to the `onclick` attribute of the HTML element you want to add the event to.

Here's an example of how you can achieve this in JavaScript:

Html

<button>Click me</button>

In this example, when the button is clicked, the `handleClick` function is called and passes the event object as a parameter. This event object contains information about the event, such as the target element and event type.

Next, let's define the `handleClick` function in JavaScript:

Javascript

function handleClick(event) {
  event.preventDefault();
  // Your custom logic here
}

In the `handleClick` function, we call the `preventDefault()` method on the event object. This prevents the default behavior of the click event, such as submitting a form or following a link.

Now, if you want to call a custom function from within the `handleClick` function, you can do so by defining the custom function and calling it accordingly. Here's an example:

Javascript

function customFunction() {
  // Your custom logic here
}

function handleClick(event) {
  event.preventDefault();
  customFunction();
}

In this example, the `handleClick` function calls the `customFunction` after preventing the default behavior of the click event.

By following these steps, you can effectively access the event object, call the `preventDefault()` method, and work with custom functions originating from the `onclick` attribute of HTML elements.

Remember to test your code thoroughly to ensure it behaves as expected across different browsers and devices. This approach can help you create more interactive and responsive web experiences for your users.

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