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Q:

Does javascript have the concept level scope?

Answer

No. JavaScript does not have block level scope, all the variables declared inside a function possess the same level of scope unlike c,c++,java.

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Q:

How do you create a new object in JavaScript?

Answer

var obj = new Object(); or var obj = {};

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Q:

What is the difference between an alert box and a confirmation box?

Answer

An alert box displays only one button which is the OK button whereas the Confirm box displays two buttons namely OK and cancel.

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Q:

What is a prompt box?

Answer

A prompt box allows the user to enter input by providing a text box.

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Q:

How to determine the state of a checkbox using Javascript?

Answer

var checkedP = window.document.getElementById("myCheckBox").checked;

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Q:

How to get the contents of an input box using Javascript?

Answer

Use the "value" property.
var myValue = window.document.getElementById("MyTextBox").value;

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Q:

Are Java and JavaScript the Same?

Answer

No.java and javascript are two different languages.
Java is a powerful object - oriented programming language like C++,C whereas Javascript is a client-side scripting language with some limitations.

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Q:

What can javascript programs do?

Answer

Generation of HTML pages on-the-fly without accessing the Web server. The user can be given control over the browser like User input validation Simple computations can be performed on the client's machine The user's browser, OS, screen size, etc. can be detected Date and Time Handling

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