Which of the following code snippets will correctly split “str”?

The following are sample code on how to loop through JavaScript object literals with objects as members: Var validation_messages = { 'key_1' : { 'your_msg' : 'hello world' } , 'Key_2' : {'your_name' : 'billy', 'your_msg' : 'foo equals bar' } } Which are invalid native JavaScript codes?

Consider the following code snippet: var myJSONObject = {'ircEvent': 'PRIVMSG', 'method': 'newURI', 'regex': '^http://.*'}; What is the best way to remove the property 'regex', so the result would be this code snippet? myJSONObject == {'ircEvent': 'PRIVMSG', 'method': 'newURI'};

Which objects in JavaScript contains the collection called 'plugins'?

Consider the following image definition: Which will change the image to companylogo2.gif when the page loads?

When setting cookies with JavaScript, what will happen to the cookies.txt data if the file exceeds the maximum size?

Which methods and properties can you use to change CSS class of an element?

What's the output? var a = [1, 2, 3]; delete a[1]; alert(a[1]);

What's the output? var a = document.getElementById('id1'); a.onclick = function1();

Consider the code snippet given below: var a = {a1: 1, a2: 2}; var b = 0; for (i in a) { b += a[i]; } Which is true?

What's the output? var a = {f: 'object'}; var b = {f: 'object'}; var c = a == b;