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Salesforce Certified JavaScript Developer I (JS-Dev-101)

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Vendor

Salesforce

Certification

Salesforce Platform

Content

219 Qs

Status

Verified

Updated

2 days ago

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Exam Overview

The Salesforce Certified JavaScript Developer I certification is a pivotal credential for any developer looking to solidify their expertise in modern JavaScript within the Salesforce ecosystem. This certification validates a developer's foundational understanding of core JavaScript concepts, syntax, and best practices, which are essential for building dynamic and efficient applications, particularly Lightning Web Components (LWC). Earning this certification significantly enhances professional credibility, demonstrating a commitment to mastering a globally critical programming language. It empowers developers to create more robust, scalable, and high-performance solutions on the Salesforce platform, opening doors to advanced development roles and distinguishing them as highly capable and versatile contributors in the ever-evolving tech landscape.

Questions

60 Multiple-choice/Multiple-select

Passing Score

65% (650/1000)

Duration

105 Minutes

Difficulty

Intermediate

Level

Specialist

Skills Measured

Variables, Types, and Collections: Demonstrating proficiency in JavaScript data types, variable declarations (var, let, const), type coercion, and working with arrays and other collection types.
Objects, Functions, and Classes: Understanding object-oriented JavaScript, including object creation, prototypes, function expressions, arrow functions, closures, and ES6 classes.
Browser and Event Handling: Knowledge of the Document Object Model (DOM), manipulating HTML elements, understanding browser events, event bubbling/capturing, and event listeners.
Debugging and Error Handling: Ability to identify and resolve JavaScript issues using browser developer tools, implementing try-catch blocks, and understanding common error types.
Asynchronous JavaScript: Competence in handling asynchronous operations using callbacks, Promises, async/await syntax, and understanding the event loop.

Career Path

Target Roles

Salesforce Developer Lightning Web Components Developer Frontend Developer

Common Questions

Is the material up to date?

Yes. We update our question bank weekly to match the latest Salesforce standards. You get free updates for 90 days.

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You get instant access to both the **PDF** (for reading) and our **Premium Test Engine** (for exam simulation).

Is there a guarantee?

Absolutely. If you fail the JS-Dev-101 exam using our materials, we offer a full money-back guarantee.

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Instantly. The download link is available in your dashboard immediately after payment is confirmed.

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