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JavaScript-Developer-I Dumps - Salesforce Certified JavaScript Developer I (WI24) Practice Exam Questions

Salesforce JavaScript-Developer-I - Salesforce Certified JavaScript Developer I (WI24) Braindumps

Salesforce JavaScript-Developer-I - Salesforce Developer Practice Exam

  • Certification Provider:Salesforce
  • Exam Code:JavaScript-Developer-I
  • Exam Name:Salesforce Certified JavaScript Developer I (WI24) Exam
  • Total Questions:213 Questions and Answers
  • Updated on:May 28, 2024
  • Product Format: PDF & Test Engine Software Version
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Salesforce JavaScript-Developer-I This Week Result

JavaScript-Developer-I Question and Answers

Question # 1

What are two unique features of functions defined with a fat arrow as compared to normal function definition?

Choose 2 answers



The function generated its own this making it useful for separating the function’s scope from its enclosing scope.


The function receives an argument that is always in scope, called parentThis, which is the enclosing lexical scope.


If the function has a single expression in the function body, the expression will be evaluated and implicit returned.


The function uses the this from the enclosing scope.

Discussion 0
Question # 2

Universal Containers recently launched its new landing page to host a crowd-funding

campaign. The page uses an external library to display some third-party ads. Once the page is

fully loaded, it creates more than 50 new HTML items placed randomly inside the DOM, like the

one in the code below:

Question # 2

All the elements includes the same ad-library-item class, They are hidden by default, and they are randomly displayed while the user navigates through the page.



Use the DOM inspector to prevent the load event to be fired.


Use the browser to execute a script that removes all the element containing the class ad-library-item.


Use the DOM inspector to remove all the elements containing the class ad-library-item.


Use the browser console to execute a script that prevents the load event to be fired.

Discussion 0
Question # 3

At Universal Containers, every team has its own way of copying JavaScript objects. The code snippet shows an Implementation from one team:

Question # 3

What is the output of the code execution?



Hello John Doe


Hello Dan


Hello Dan Doe


SyntaxError: Unexpected token in JSON

Discussion 0

PDF vs Software Version

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JavaScript-Developer-I FAQs

For the JavaScript-Developer-I certification, you should have a good grasp of JavaScript, but you don't need to dive too deep into all frameworks. Focus on understanding core JavaScript concepts and how they're applied. It's more about knowing JavaScript itself rather than being an expert in every framework out there.

For the JavaScript-Developer-I exam, your main focus should be on JavaScript itself. Being comfortable with HTML and CSS can also be helpful since they often work together with JavaScript in web development. These are the key ingredients for creating dynamic and interactive web pages.

In the Salesforce ecosystem, JavaScript plays a big role in creating dynamic, interactive client-side applications. It's used in Lightning Web Components (LWC) to build custom user interfaces on the Salesforce platform. Knowing JavaScript lets you customize and enhance the user experience in Salesforce, making it a valuable skill for Salesforce developers.

The JavaScript-Developer-I exam covers:

  • Fundamental JavaScript concepts: Variables, types, expressions, operators, and more.
  • Functions and classes: Understanding how to structure and organize code.
  • Browser and Events: Interacting with the browser and handling user inputs.
  • Debugging and Error Handling: Finding and fixing issues in the code.
  • Asynchronous Programming: Working with callbacks, promises, and async/await.
  • It's all about getting a well-rounded understanding of JavaScript!

The passing score for the JavaScript-Developer-I exam can vary, but it's typically around 65-70%. Salesforce determines this score based on the exam's difficulty and the performance of all candidates. It ensures that the score reflects a fair level of knowledge and skill in JavaScript.

The JavaScript-Developer-I certification is usually valid for a year. Salesforce requires you to complete a maintenance module annually to keep your certification up to date. This involves updating your knowledge with the latest features and changes in Salesforce. It's like a quick refresher to keep your skills sharp and current.

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Ethan Collins
9 months ago
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