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Cairo University Faculty of Engineering Computer Engineering Department WEB BUILDING 1 Browser Scripting JavaScript Quiz

15 Questions

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Cairo University Faculty of Engineering Computer Engineering Department WEB BUILDING 1 Browser Scripting JavaScript Quiz

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Questions and Answers

What is the primary purpose of JavaScript in web development?

Styling HTML pages

Creating database queries

Adding interactivity to HTML pages (correct)

Optimizing server performance

Where is JavaScript usually embedded in web development?

Directly into HTML pages (correct)

In external CSS files

In the database

In the server-side code

What does it mean for JavaScript to be an interpreted language?

Scripts interact with the database directly

Scripts are compiled before execution

Scripts execute only on the server-side

Scripts execute without preliminary compilation (correct)

Where are scripts placed if they are to be executed when called or when an event is triggered?

Inside functions Signup and view all the answers

What is the purpose of including functions in the head section of an HTML page?

To keep all functions in one place without interfering with page content Signup and view all the answers

When should a script be placed inside a function?

When the script should be executed when called or when an event is triggered Signup and view all the answers

What is the purpose of saving JavaScript in an external file?

To avoid rewriting the same script on every page Signup and view all the answers

Which of the following best describes JavaScript objects?

Objects have properties and methods Signup and view all the answers

What is the correct way to access an Array object in JavaScript?

myCars = ['Saab', 'Volvo', 'BMW']; Signup and view all the answers

How would you instantiate a date to be 5 days into the future in JavaScript?

myDate2.setDate(myDate.getDate() + 5); Signup and view all the answers

What is the purpose of creating an instance of an object in JavaScript?

To add properties to the object Signup and view all the answers

Which built-in object in JavaScript represents a string?

JS String Signup and view all the answers

What does the Array method concat() do in JavaScript?

Combines two or more arrays into a new array Signup and view all the answers

What does the method toUpperCase() do in JavaScript?

Returns a string converted to uppercase Signup and view all the answers

How would you set a Date object to a specific date in JavaScript?

myDate1.setFullYear(2010, 0, 14); Signup and view all the answers