JavaScript-Day2

Which type of loop executes at least once before checking the condition?

• for loop

• while loop

• do-while loop

• foreach loop

What will the following code output?

for (let i = 0; i < 5; i++) {

console.log(i);

}

• 0 to 4

• 1 to 5

• 0 to 5

• Error

Which statement is used to exit a loop prematurely?

• stop

• return

• break

• exit

What is the correct way to select an element with the ID demo?

• document.getElementsByClassName('demo')

• document.getElementById('demo')

• document.querySelector('.demo')

• document.getElementsByTagName('demo')

How can you create a new HTML element using JavaScript?

• document.newElement("p")

• document.appendChild("p")

• document.createElement("p")

• document.writeElement("p")

Which property is used to change the text of an HTML element?

• innerText

• textContent

• innerHTML

• All of the above

Which method is used to remove an element from the DOM?

• element.remove()

• document.deleteElement()

• element.destroy()

• document.removeChild()

What is the purpose of document.createTextNode()?

• To create a new element

• To add inline CSS

• To create a text node for an element

• To manipulate CSS properties

How can you attach an event to a button using JavaScript?

• button.addEventListener("click", function)

• button.onclick(function)

• button.attachEvent("click", function)

• button.triggerEvent("click", function)

Which type of loop is best used when the number of iterations is known?

• for loop

• while loop

• do-while loop

• for-in loop