Salesforce Javascript Developer I

Certification Information

The Javascript Developer I Certification is a credential developed for Salesforce professionals who have knowledge, skills, and experience implementing front-end and/or back-end JavaScript solutions on the Salesforce platform or the web stack in general, and are looking to verify their expertise to further advance their career in this department.

Key Facts

The exam is made up of 60 multiple choice questions

105 minutes to complete

The passing score is 65%

There are no prerequisites

Cost is USD $200 and the retake fee is is USD $100 if you are unsuccessful

This information will assist you if you’re interested in becoming Javascript Developer I certified and includes an overview of the core topics in the exam.

There are 7 areas of knowledge that are covered by the Salesforce Javascript Developer I certification.

They are covered by the Javascript Developer I training, but if you are not able to attend, then you will need to ensure you know the areas listed below well.

Objective	Weighting
Variables, Types, and Collections	23%
Objects, Functions, and Classes	25%
Browser and Events	17%
Debugging and Error Handling	7%
Asynchronous Programming	13%
Server Side JavaScript	8%
Testing	7%

Salesforce Javascript Developer I - Topics Weighting Chart

Javascript Developer I Topic Weighting Chart

Javascript Developer I
Certification Contents

The following are the core topic areas of the Javascript Developer I certification and what you’re expected to know:

Variables, Types, and Collections

The Variables, Types, and Collections is one of the core topic areas in the exam. After going through this study, you should be able to confidently write code that is appropriate for each given scenario. This section consists of 6 main objectives, all of which are extensively covered in our course as listed below:

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 falsey evaluations.
Given a list of data, demonstrate data manipulation with arrays.
Given a JSON response, demonstrate how to operate the JSON object.

Salesforce Javascript Developer I - Variables, Types, and Collections

Objects, Functions, and Classes

WWith this specific section, your mastery on the following objectives will be the focus of our study & exercises:

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 block of code, analyze the variable scope and the execution flow.

Salesforce Javascript Developer I - Objects, Functions, and Classes

Browser and Events

Objectives of this section consists of:

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.

Salesforce Javascript Developer I - Browser and Events

Debugging and Error Handling

In Debugging and Error Handling, we focus on 2 main objectives. You will learn how to maneuver the following scenarios:

Handle errors properly (based on a given scenario).
Use the console and breakpoints (based on a given code to debug).

Salesforce Javascript Developer I - Debugging and Error Handling

Asynchronous Programming

Asychronous Programming objectives are:

Handle errors properly (based on a given scenario).
Use the console and breakpoints (based on a given code to debug).

Salesforce Javascript Developer I- Asynchronous Programming

Server Side JavaScript

This area thoroughly covers 4 main objectives:

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, 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.

Salesforce Javascript Developer I - Server Side Javascript

Testing

This section takes up 7% of the certification, and tackles a single objective:

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

Salesforce Javascript Developer I - Testing

To prepare successfully for the certification exam, we recommend to work through our