JavaScript for Web Development

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What is a limitation of JavaScript in terms of data storage capabilities?

It cannot access resources like the current date and time.

It cannot help with image rollover effects.

It can only store user preferences in cookies on the user's hard drive. (correct)

It does not support client-side scripting.

Why might someone find the popularity of server-side languages like Perl and PHP hard to understand if they primarily work with JavaScript?

Server-side scripts are less efficient for tasks localized to the user interface.

JavaScript runs within a client application and has limited access to resources. (correct)

JavaScript is unable to handle image rollover or page transition effects.

JavaScript cannot perform basic checks on user input in web forms.

In what scenario are client-side checks necessary in web development?

Performing server-side transitions effects.

Handling user preferences storage on the server.

Creating dynamic server resources.

Verifying the validity of entered data in web forms. (correct)

What type of tasks are mentioned as most efficiently handled by client-side scripting in the text?

Tasks related to user interface localized operations. Signup and view all the answers

Why does the text mention that you should not discard your JavaScript manual even when working with server-side scripts?

Client-side scripting is essential for certain UI-specific tasks. Signup and view all the answers

What is a consequence of storing user preferences in cookies using JavaScript?

The preferences can only be retrieved if the user returns from the same computer. Signup and view all the answers

What is one advantage of PHP's extensible architecture?

Enables developers to easily add support for new technologies Signup and view all the answers

What can PHP do through its add-on modules?

Dynamically create image, PDF, and SWF files Signup and view all the answers

What is PEAR in PHP?

Online repository of free PHP classes Signup and view all the answers

Which database is NOT supported by PHP according to the text?

MongoDB Signup and view all the answers

What does the improved MySQL extension in PHP 5.0 allow developers to do?

Take advantage of new MySQL features like subqueries and transactions Signup and view all the answers

How does PHP cater to applications that source data from databases?

Supports various databases like MySQL, PostgreSQL, Oracle, SQLite, etc. Signup and view all the answers

What is the main goal of PHP according to the text?

To incorporate sophisticated business logic into static web pages Signup and view all the answers

Why is PHP becoming a popular choice for data-driven web applications?

Because of its wide support for different database systems Signup and view all the answers

How is PHP code typically integrated into a regular HTML document?

By embedding it inside the HTML document Signup and view all the answers

What advantage does PHP offer over JavaScript in terms of code execution?

PHP code is executed on the server, not the client Signup and view all the answers

Why has PHP gained popularity despite existing Perl/CGI scripts for dynamic HTML pages?

PHP can incorporate complex logic into web pages Signup and view all the answers

How does PHP manage to avoid common issues that JavaScript faces in web development?

By executing code on the server-side Signup and view all the answers