JavaScript Core Concepts for Beginners
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Questions and Answers

What was the primary purpose of JavaScript in the past?

  • To optimize web page viewing
  • To dynamically create web pages on servers
  • To execute complex logic on the server
  • To make pages somewhat interactive and execute rudimentary logic (correct)

    • What is the characteristic of modern JavaScript engines?

  • They are powerful and sophisticated, optimizing execution and conforming to the ECMAScript standard (correct)
  • They are single-threaded and asynchronous
  • They are slow and inefficient
  • They are only used in browsers

    • What happens when the stack is empty in the JavaScript runtime?

  • The event loop takes work from the queue and moves it into the stack (correct)
  • The queue is emptied
  • The event loop stops working
  • The thread is terminated

    • What is the main difference between server-side and client-side rendered web applications?

    <p>Server-side executes on the server, client-side executes on the client</p> Signup and view all the answers

    What is the single-threaded runtime represented by in the JavaScript engine?

    <p>The stack</p> Signup and view all the answers

    Why do developers need to learn JavaScript in the Salesforce ecosystem?

    <p>Because it's used in the Lightning Component Framework</p> Signup and view all the answers

    What is assumed about the reader's knowledge of JavaScript in this module?

    <p>Familiarity with basic keywords, operators, and syntax</p> Signup and view all the answers

    What is the primary purpose of this module?

    <p>To help developers coming from classical programming languages to understand JavaScript</p> Signup and view all the answers

    What was a major challenge in creating web applications in the early 2000s?

    <p>Fragmented HTML and JavaScript standards</p> Signup and view all the answers

    What is the expected outcome of completing this module?

    <p>Understanding of JavaScript's core concepts and best practices</p> Signup and view all the answers

    Why did some web applications force users to use only one browser in the early 2000s?

    <p>Due to design decisions made during that era</p> Signup and view all the answers

    What is the significance of the early 2000s in web development history?

    <p>Web applications became popular and were hosted and delivered over the Internet</p> Signup and view all the answers

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