js forms

Question 1

What event is fired when a user places their cursor in a form control?

Answer 1

focus

Question 2

What event is fired when a user’s cursor leaves a form control?

Answer 2

blur

Question 3

What event is fired as a user changes the value of a form control?

Answer 3

change or input?

Question 4

What event is fired when a user clicks the “submit” button within a form?

Answer 4

submit

Question 5

What does the event.preventDefault() method do?

Answer 5

prevents default behavior, like submit buttons resetting a form

Question 6

What does submitting a form without event.preventDefault() do?

Answer 6

submits and resets the form

Question 7

What property of a form element object contains all of the form’s controls.

Answer 7

document.forms[formIndex].elements

Question 8

What property of a form control object gets and sets its value?

Answer 8

value

Question 9

What is one risk of writing a lot of code without checking to see if it works so far?

Answer 9

When it inevitably breaks, it will be harder to find where it broke, possibly in multiple places

Question 10

What is an advantage of having your console open when writing a JavaScript program?

Answer 10

constant checking your code to see if it’s behaving properly