Which of the following is a valid variable name in JavaScript?

A. this

B. that

C. 2that

D. 2this

Consider the following code:

Which statement could be used to determine the value of the first radio button?

A. document.rdoGroup1.value

B. document.myForm.rdoGroup1[0].value

C. document.getElementById(rdoGroup1).value

D. document.getElementById("rdoGroup1").value

Which script block will display Hello World in the browser when the script is run?

A.

B.

C.

D.

Consider the following code:

What needs to be changed to allow this script to run without error?

A. Change the substring method call to substr

B. Change the substring method call to substr()

C. Change the characterAt method call to charAt

D. Change the characterAt method call to characterat

Consider the following code:

What is the expected output when you run this script in a browser?

A. A button labeled Click Me will appear, with an input box that displays the following default text: Old Value. Upon clicking the button, the textin the text box will change to New Value. Upon clicking the button again, the text in the text box will change back to Old Value.

B. A button labeled Click Me will appear, with an input box that displays the following default text: Old Value. Upon clicking the button, the text inthe text box will change to New Value. Upon clicking the button again, the text in the text box will change to Old Value, New Value.

C. A button labeled Click Me will appear, with an input box that displays the following default text: Old Value. Upon clicking the button, the text inthe text box will change to New Value. Upon clicking the button again, you will see nothing change.

D. This script will not run. You will get an error because the value="Old Value" statement in the tag contains the reserved wordValue within the quotes.