Q
Which JavaScript method is used to prevent the default behavior of an element's action?

Answer & Solution

Answer: Option Option B
Solution:
The preventDefault() method is used to prevent the default behavior of an element's action in JavaScript. This method is commonly used with event listeners to prevent the default actions of elements such as links, buttons, or form submissions. By calling event.preventDefault() within an event handler, you can stop the default action from occurring, allowing you to implement custom behaviors or actions based on user interactions. The addEventListener(), onclick(), and removeEventListener() methods are used for event handling, but preventDefault() specifically prevents default behaviors.
Related Questions on Average

Which HTML element is commonly used to create a print button in JavaScript?

A). <input type='button'>

B). <a>

C). <button>

D). <div>

What is the purpose of using CSS media queries with print styles in web development?

A). To optimize page layouts for printing.

B). To hide elements on the page.

C). To change the font styles dynamically.

D). To add animations to the page.

How can you add custom headers and footers to a printed document using CSS?

A). By using the @page rule with :after and :before pseudo-elements.

B). By using the @media print rule with header and footer selectors.

C). By using the @import rule with external CSS files.

D). By using the @keyframes rule with animation properties.

How can you print only a specific section of an HTML page using JavaScript?

A). By using the window.open() method.

B). By selecting the section and calling window.print().

C). By using the document.write() method.

D). By embedding the section in an iframe.

What does the @media print {} CSS rule target?

A). Screen displays.

B). Print media.

C). Handheld devices.

D). All media types.

How can you add a print button to an HTML page using JavaScript?

A). By using a link (<a>) element.

B). By using a div (<div>) element.

C). By using a button (<button>) element.

D). By using an image (<img>) element.

What happens when you call the window.print() method in JavaScript?

A). It opens a new tab in the browser.

B). It triggers the print dialog in the browser.

C). It closes the current browser window.

D). It displays an error message.

How can you ensure that certain elements are hidden when printing an HTML page?

A). By applying the display: none; property in a print media query.

B). By applying the visibility: hidden; property in a print media query.

C). By applying the opacity: 0; property in a print media query.

D). By applying the position: absolute; property in a print media query.

Which JavaScript method is commonly used to handle the click event of a print button?

A). addEventListener()

B). preventDefault()

C). onclick()

D). removeEventListener()

What is the primary purpose of the window.print() method in JavaScript?

A). To open a new browser window.

B). To print the current web page or a specified element.

C). To display an alert message.

D). To redirect to another URL.