Blog

Salesforce JavaScript Developer I Certification: A Comprehensive Guide 

JavaScript Developer I Certification
2023-05-05
1 mins read
Amit Masih
17.png

JavaScript is a versatile and powerful language for web development. JavaScript enhances website or web application development and offers excellent software-building capabilities.

JavaScript and languages such as HTML and CSS enable users to create interactive and dynamic websites that cannot be achieved with front-end languages alone. It is both a front-end and back-end language, thus giving users more control over the server while working on the client side.

JavaScript language is super important these days, with more and more websites popping up and more businesses going online. This is an excellent time to get a certification for your projects or jobs that need JavaScript. JavaScript certifications can help you land better jobs and make you more appealing to employers. JavaScript certifications show you know how to use JavaScript and its excellent libraries or frameworks.

The Javascript Developer I Certification is a credential for Salesforce pros who know how to use front-end and/or back-end JavaScript on the Salesforce platform or the web stack and want to show off their skills to advance in their career.

What is the Salesforce JavaScript Developer I certification?

The Salesforce Certified JavaScript Developer I is a credential demonstrating the knowledge, skills, and experience of individuals who can develop front-end and/or back-end JavaScript applications for the web stack. These skills apply to any framework and are not specific to any mobile device.   This credential verifies both the core JavaScript skills and the practical development skills of candidates who need to work with JavaScript-related technologies such as the Lightning Component Framework, and especially Lightning Web Components. Lightning web components are custom HTML elements built using standard HTML and modern JavaScript.   The certification comprises two parts: the JavaScript Developer I proctored multiple-choice examination and the Lightning Web Components Specialist super badge. These two credentials can be obtained in any order. The multiple-choice examination focuses solely on JavaScript, and the super badge assesses the hands-on Lightning Web Component development skills. The combination of both of these credentials automatically awards the Salesforce Certified JavaScript Developer I certification.

About the exam

The JavaScript Developer I certification is a multiple-choice exam and a well-recognized credential in the JavaScript ecosystem. This credential is designed for individuals with 1-2 years of knowledge, skills, and experience in developing front-end and/or back-end JavaScript applications for the web stack. This examination verifies the core JavaScript development skills of candidates who need to work with JavaScript-related technologies.    A significant advantage of the Lightning Web Components programming model is that developers use standard JavaScript code. Candidates who pass the JavaScript Developer I examination demonstrate they possess the standard JavaScript fundamentals to create Lightning web components. There are no formal prerequisites to take the JavaScript Developer I certification exam. 

 Here are the Salesforce JavaScript Developer I certification exam details:

Exam questions: 60 multiple-choice/multiple-select questions and up to five non-scored questions Time duration: 105 minutes Passing score: 65% Registration fee: USD 200

Target audience

The Salesforce Certified JavaScript Developer I certification candidate uses the JavaScript language in one or more frameworks to develop front-end and/or back-end applications. The candidate can design, develop, and test performant, maintainable, and reusable solutions.

The candidate can use JavaScript-specific design patterns for programming and combine JavaScript with CSS, HTML, and other markup languages.

Every JavaScript developer can quickly build on Salesforce with Lightning Web Components. For the millions of JavaScript developers worldwide, this means they can code on Salesforce without learning anything new. Developers can use the existing portfolio of developer services in the Lightning Platform and the modern JavaScript language to build and deploy blazing-fast apps on Salesforce.

The Salesforce Certified JavaScript Developer I is intended for Salesforce partners, customers, and employees who work with JavaScript and also have knowledge, skills, and experience with the Lightning Component Framework and developing Lightning Web Components (LWCs).

Exam outline

The Salesforce JavaScript Developer I certification exam evaluates a candidate’s ability and understanding in the following sections and objectives:

Variables, Types, and Collections: 23%

  • Given a scenario, write code to create variables and initialize them correctly.
  • Given a business requirement, utilize strings, numbers, and dates effectively.
  • Given a scenario or example, demonstrate awareness of type coercion and its effects.
  • Given a specific scenario, distinguish truthy or false evaluations
  • Given a list of data, demonstrate data manipulation with arrays.
  • Given a JSON response, demonstrate how to operate the JSON object.

Objects, Functions, and Classes: 25%

  • Given a business requirement, locate the best function implementation.
  • Given a business requirement, apply fundamentals of object implementation to solve the business requirement.
  • Given a business requirement, apply fundamentals of class implementation to solve the business requirement.
  • Given a JavaScript module, give examples of how to use the module.
  • Given a JavaScript decorator, give examples of how to use the decorator.
  • Given a code block, analyze the variable scope and the execution flow.

Browser and Events: 17%

  • Given a business requirement, utilize Events, event handlers, and propagation.
  • Given a business requirement, evaluate and manipulate the DOM.
  • Given a scenario, utilize the Browser Dev Tools to investigate code behavior. 
  • Given a scenario and requirements, utilize browser-specific APIs.

Debugging and Error Handling: 7%

  • Given a scenario, handle errors properly.
  • Given code to be debugged, use the console and breakpoints.c

Asynchronous Programming: 13%

  • Given a scenario, apply asynchronous programming concepts.
  • Given a scenario, use an event loop and monitor or determine loop outcomes.

Server Side JavaScript: 8%

  • Given a scenario and requirements, infer which Node.js implementation is a good solution.
  • Given a scenario and requirements, infer which Node.js CLI command is a good solution.
  • Know the core Node.js modules and given requirements, and infer which Node.js library/framework is a good solution.
  • Given a scenario and requirements, distinguish which Node.Js Package Management solution is the most fitting.

Testing: 7%

  • With a block of code and the associated Unit Test, determine where the test is ineffective and modify it to make it more effective.

Who can take the Salesforce Certified JavaScript Developer I certification?

The Salesforce Certified JavaScript Developer I is suitable for various job roles that involve working with JavaScript and Salesforce. Some examples of these job roles are JavaScript programmer, Salesforce developer, full stack developer, web application developer, front-end developer, software/back-end developer, support engineer, technical product/project manager, and UI/UX engineer.

How hard is the Salesforce Certified JavaScript Developer I certification exam?

The exam's difficulty level varies depending on the candidate’s experience and knowledge of JavaScript and web development. Some candidates may find the exam relatively easy, while others may find it quite challenging. On the one hand, the Salesforce JavaScript Developer I certification exam is not very difficult, as it assesses the candidate’s understanding and application of JavaScript design patterns and development concepts.

On the other hand, the Salesforce Certified JavaScript Developer I certification exam requires a thorough knowledge of JavaScript fundamentals. It also evaluates the candidate’s ability to read code, perform analysis, conduct testing, and other skills not common in other certification exams.

What are the benefits of earning the Salesforce Certified JavaScript Developer I certification?

The Salesforce Certified JavaScript Developer I certification is designed for developers with 1-2 years of experience developing front-end and/or back-end JavaScript applications for the web stack. It tests your knowledge and skills in using JavaScript design patterns and development concepts, as well as Lightning Web Components, which are custom HTML elements built using HTML and modern JavaScript.

By earning this certification, you can enjoy many benefits, such as:

More career opportunities:

JavaScript is super popular, and many companies need developers who can use it with Salesforce to improve their business.

Higher salary:

Some sources say certified developers get paid more than non-certified ones. The Salesforce Certified JavaScript Developer I certification can help you earn more and advance your career.

More profound knowledge:

The Salesforce JavaScript Developer I certification can help you learn much about the Salesforce platform and what it can do, like Lightning Data Service, Lightning Message Service, Apex, and Salesforce Lightning Design System. You can learn how to use these things to work with data, talk to other components, fix errors, and make excellent user interfaces.

Real-world challenges:

The Salesforce JavaScript Developer I certification has two parts: the Lightning Web Components Specialist super-badge and the JavaScript Developer I exam. The super badge makes you do some cool stuff, like real-world problems.

The final say

If you’re a JS developer or want to be one, you should earn the Salesforce Certified JavaScript Developer I certification. The Salesforce JS Developer certification is an excellent way to display your JS skills and get a high-paying job in the industry. 

The Salesforce JavaScript Developer I certification is an excellent opportunity to take your JavaScript skills to the next level and become a Salesforce developer. Don’t let this chance pass you by. Start your journey today and get certified as a Salesforce JavaScript Developer I.

CBT Proxy is a reputable proxy service provider that helps IT professionals achieve their desired certifications on their first attempt. You can end your search here if you want the Salesforce Certified Javascript Developer I certification and need a reliable proxy exam service. For more information about the certification, please use the chat options below, and we will assist you accordingly.

We are a one-stop solution for all your needs and offer flexible and customized offers to all individuals depending on their educational qualifications and certification they want to achieve.

Copyright © 2024 - All Rights Reserved.

Chat With Us