Which of these 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?

for the following code: var baz = 0; function foo() { alert(bar(baz)); var baz = 1; function bar(message) { return message + ' is ' + message + '!' } baz = 2 alert(bar(baz)); } foo(); What gets alerted?

var colors=[{name:'red'}], car={name:'toyota'}; car.color=colors[0]; car.color.name='yellow'; Which is the value of colors[0].name?

What is logged? var x = (1 + '1') !== '11' || ('1' + 1) === 2; console.log(x);

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?

Which will turn a string into a JavaScript function call (case with objects) of the following code snippet?

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

What value would JavaScript assign to an uninitialized variable?