To define var1 = 'AAAAAAAAAAAAAAAAAAAA'; //20 times A Which of the following could be used

Which one returns current millisecond count?

what will be the VALUE and TYPE of i? var i = -Infinity;

Which is the optimal method of executing a for-loop?

How can you delete a variable in Javascript?

given the following code: var baz = 0; function foo() { alert(bar(baz)); var baz = 1; var bar = function(message) { return message + ' is ' + message + '!' } baz = 2 alert(bar(baz)); } foo(); what is the output?

What value would JavaScript assign to an uninitialized array element?

If an image is placed styled with z-index=-1 and a text paragraph is overlapped with it, which one will be displayed on top?

Consider the three variables: someText = 'JavaScript1.2'; pattern = /(\w+)(\d)\.(\d)/i; outCome = pattern.exec(someText); What does outCome[0] contain?

The statement navigator.platform indicates 'Win16' on user's computer that's running Windows NT. Which of the following is true?

Which Regular Expression pattern flag is not valid?