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Q:

Why was PHP developed, what it is used for, and where can you get it?

Answer

PHP developed for less script, time saving, Free Open Source Software and runs on different platforms such as Windows, Linux, Unix, etc. PHP compatible with almost all servers used today such as Apache, IIS, etc.

The PHP scripting language resembles JavaScript, Java, and Perl, These languages all share a common ancestor, the C programming language. PHP has full access to the information that the server has, and very little access to information that the client has. In fact, it only has information that the client tells the server and that the server passes on to PHP. Because it is on the server, however, PHP cannot be modified by the client. While you cannot necessarily trust the information that the client gives to PHP, you can trust that your PHP is doing what you told it to do. Because PHP is on the server end, your PHP scripts can affect your server -- such as by keeping an activity log or updating a database.

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Subject: PHP

Q:

What is the difference between "==" and "==="?

Answer

"==" checks equality only,
"===" checks for equality as well as the type.

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Subject: Web Technology

Q:

Which of the following navigator object properties is the same in both Netscape and IE?

A) navigator.appCodeName B) navigator.appName
C) navigator.appVersion D) None of the above
 
Answer & Explanation Answer: A) navigator.appCodeName

Explanation:
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Filed Under: Web Technology

Q:

Which class provides an interface for invoking JavaScript methods and examining JavaScript properties.

A) ScriptObject B) JSObject
C) JavaObject D) Jobject
 
Answer & Explanation Answer: B) JSObject

Explanation:
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Q:

What is Javascript namespacing? How and where is it used?

Answer

Using global variables in Javascript is evil and a bad practice. That being said, namespacing is used to bundle up all your functionality using a unique name. In JavaScript, a namespace is really just an object that you’ve attached all further methods, properties and objects. It promotes modularity and code reuse in the application.

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Subject: Web Technology

Q:

Are javascript and jQuery different?

Answer

jQuery is a quick as well as concise JavaScript Library that simplifies HTML document traversing, animating, event handling, & Ajax interactions for the purpose of quick web development needs. So although they are not entirely different, both are not the same either!

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Subject: Web Technology

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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Subject: Web Technology

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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Subject: Web Technology