Free PDF 2026 Marvelous Salesforce JavaScript-Developer-I: Salesforce Certified JavaScript Developer (JS-Dev-101) Valid Real Exam

P.S. Free 2026 Salesforce JavaScript-Developer-I dumps are available on Google Drive shared by ITexamReview: https://drive.google.com/open?id=1Mf3UYRekMiI1AcGPPrFoRjS30FnpB7MS

You may be also one of them, you may still struggling to find a high quality and high pass rate Salesforce Certified JavaScript Developer (JS-Dev-101) study question to prepare for your exam. Your search will end here, because our study materials must meet your requirements. Our product is elaborately composed with major questions and answers. Our study materials are choosing the key from past materials to finish our JavaScript-Developer-I Torrent prep. It only takes you 20 hours to 30 hours to do the practice. After your effective practice, you can master the examination point from the JavaScript-Developer-I exam torrent. Then, you will have enough confidence to pass it. So start with our JavaScript-Developer-I torrent prep from now on. We can succeed so long as we make efforts for one thing.

Salesforce JavaScript-Developer-I Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Testing	7%	- Code coverage and best practices - Unit testing concepts - Testing frameworks and assertions - Test doubles and mocks
Topic 2: Objects, Functions, and Classes	25%	- Class syntax, inheritance, and prototypes - Closures and execution context - Decorators and advanced function patterns - Modules and imports/exports - Object creation, properties, and methods - Function definitions, parameters, and scope
Topic 3: Variables, Types, and Collections	23%	- Working with strings, numbers, dates, and booleans - Variable declaration and initialization - Truthy and falsy values - Array methods and data manipulation - Type coercion and conversion rules - JSON parsing and usage
Topic 4: Debugging and Error Handling	7%	- Defensive programming practices - Console methods and logging - Error types and exception handling - Debugging tools and breakpoints
Topic 5: Server-Side JavaScript	8%	- Module system and require/import - Core Node.js modules - Node.js fundamentals and runtime - Command-line tools and scripts
Topic 6: Asynchronous Programming	13%	- Callbacks and callback hell - Async/await syntax - Event loop and micro/macro tasks - Fetch API and HTTP requests - Promises and chaining
Topic 7: Browsers and Events	17%	- Browser APIs and Web Storage - Event handling, propagation, and delegation - Script loading and execution order - Window and document object properties - Document Object Model (DOM) manipulation

>> JavaScript-Developer-I Valid Real Exam <<

Salesforce JavaScript-Developer-I Valid Real Exam: Salesforce Certified JavaScript Developer (JS-Dev-101) - ITexamReview Try Free and Buy Easily

We even guarantee our customers that they will pass Salesforce JavaScript-Developer-I Exam easily with our provided study material and if they failed to do it despite all their efforts they can claim a full refund of their money (terms and conditions apply). The third format is the desktop software format which can be accessed after installing the software on your Windows computer or laptop. The Salesforce Certified JavaScript Developer (JS-Dev-101) has three formats so that the students don't face any serious problems and prepare themselves with fully focused minds.

Salesforce Certified JavaScript Developer (JS-Dev-101) Sample Questions (Q73-Q78):

NEW QUESTION # 73
Refer to the code:

Given the code above, which three properties are set for pet1? Choose 3 answers

A. size
B. canTalk
C. name
D. type
E. owner

Answer: A,B,D

NEW QUESTION # 74
A developer at Universal Containers creates a new landing page based on HTML, CSS, and JavaScript TO ensure that visitors have a good experience, a script named personaliseContext needs to be executed when the webpage is fully loaded (HTML content and all related files ), in order to do some custom initialization.
Which statement should be used to call personalizeWebsiteContent based on the above business requirement?

A. window.addEventListener('load',personalizeWebsiteContext);
B. window.addEventListener('onload', personalizeWebsiteContext);
C. Document.addEventListener('''DOMContextLoaded' , personalizeWebsiteContext);
D. document.addEventListener(''onDOMContextLoaded', personalizeWebsiteContext);

Answer: A

NEW QUESTION # 75
A developer is wondering whether to use, promise, then or provise, catch especially when a promise throws an error.
Which two promises are rejected? Choose 2 answers

A. Promise, rejected (Cool error here'), then (error => console (error ));
B. Promise , reject ('Cool error here ') , catch (error => console ,error (error));
C. New Promise((resolve, reject) => ( throw 'Cool error here')) .catch (error => console (error ));
D. New promise (() => (throw 'Cool error here ')) , then ((null, error => console, (error)));

Answer: C,D

NEW QUESTION # 76
Refer to the following code that imports a module named utils:
import (foo, bar) from '/path/Utils.js';
foo() ;
bar() ;
Which two implementations of Utils.js export foo and bar such that the code above runs without error?
Choose 2 answers

A. const foo = () => { return 'foo';}
const bar = () => {return 'bar'; }
Export default foo, bar;
B. Export default class {
foo() { return 'foo' ; }
bar() { return 'bar' ; }
}
C. // FooUtils.js and BarUtils.js exist
Import (foo) from '/path/FooUtils.js';
Import (boo) from ' /path/NarUtils.js';
D. const foo = () => { return 'foo' ; }
const bar = () => { return 'bar' ; }
export { bar, foo }

Answer: B,D

NEW QUESTION # 77
Teams at Universal Containers (UC) work on multiple JavaScript projects at the same time.
UC is thinking about reusability and how each team can benefit from the work of others.
Going open-source or public is not an option at this time.
Which option is available to UC with npm?

A. Private packages are not supported, but they can use another package manager like
yarn.
B. Private packages can be scored, and scopes can be associated to a private
registries.
C. Private registries are not supported by npm, but packages can be installed via URL.
D. Private registries are not supported by npm, but packages can be installed via git.

Answer: B

NEW QUESTION # 78
......

The JavaScript-Developer-I study materials are mainly through three learning modes, Pdf, Online and software respectively. Among them, the software model is designed for computer users, can let users through the use of Windows interface to open the JavaScript-Developer-I study materials of learning. It is convenient for the user to read. The JavaScript-Developer-I study materials have a biggest advantage that is different from some online learning platform which has using terminal number limitation, the JavaScript-Developer-I Study Materials can meet the client to log in to learn more, at the same time, the user can be conducted on multiple computers online learning, greatly reducing the time, and people can use the machine online more conveniently at the same time. As far as concerned, the online mode for mobile phone clients has the same function.

JavaScript-Developer-I Customizable Exam Mode: https://www.itexamreview.com/JavaScript-Developer-I-exam-dumps.html

P.S. Free & New JavaScript-Developer-I dumps are available on Google Drive shared by ITexamReview: https://drive.google.com/open?id=1Mf3UYRekMiI1AcGPPrFoRjS30FnpB7MS