AWS, JavaScript, React - Deploy Web Apps on the Cloud - Introduction-JavaScript

The video tutorial introduces JavaScript as a client-side programming language that enhances web page interactivity. It contrasts JavaScript with server-side languages like PHP and highlights its limitations, such as lack of server communication and dependency on browser support. The tutorial provides examples of JavaScript functions, including character counting, form validation, and a tic-tac-toe game. It also clarifies the difference between JavaScript and Java, emphasizing JavaScript's object-oriented nature and the use of variables to define object attributes.

What is the primary role of JavaScript in web development?

• To store data on the server

• To provide interactivity on web pages

• To manage databases

• To style web pages

Which of the following is a client-side language?

• PHP

• Python

• Java

• JavaScript

What does the JavaScript function that counts characters in a text area do?

• It formats the text

• It checks for spelling errors

• It calculates the number of characters typed

• It counts the number of words

What happens if more than 10 words are typed into a text area in the given JavaScript example?

• The text is highlighted

• The text is automatically shortened

• A pop-up alert appears

• The text is saved to a file

What is a limitation of JavaScript mentioned in the transcript?

• It cannot style web pages

• It cannot communicate with the web server

• It cannot be used for calculations

• It cannot be used in modern browsers

What is a key characteristic of JavaScript as an object-oriented language?

• It uses functions to store data

• It uses objects to encapsulate attributes

• It relies on server-side processing

• It is similar to HTML

Which of the following is NOT an attribute of an object in JavaScript?

• Height

• Server

• Name

• Color