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

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

A). Screen displays.

B). Print media.

C). Handheld devices.

D). All media types.

How can you invoke the print functionality in JavaScript?

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

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

C). By using the window.print() method.

D). By using the window.confirm() method.

How can you apply custom print styles to a specific HTML element using CSS?

A). By using the :hover pseudo-class.

B). By using the :focus pseudo-class.

C). By using the :before pseudo-element.

D). By using the :not pseudo-class.

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.

Which JavaScript method is used to open the print dialog programmatically?

A). window.alert()

B). window.open()

C). window.print()

D). window.confirm()

How can you add custom content before and after the printed content of a web page?

A). By using JavaScript event listeners.

B). By using CSS pseudo-elements (:before and :after).

C). By using HTML <header> and <footer> elements.

D). By using jQuery libraries.

How can you hide certain elements from being printed using CSS?

A). By setting the visibility: hidden; property.

B). By setting the display: none; property.

C). By setting the opacity: 0; property.

D). By setting the overflow: hidden; property.

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

A). addEventListener()

B). preventDefault()

C). onclick()

D). removeEventListener()

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.

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

A). <input type='button'>

B). <a>

C). <button>

D). <div>