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The validation of expertise, more career opportunities, salary enhancement, instant promotion, and membership of Salesforce certified professional community. In this way, the Salesforce Certified JavaScript Developer (JS-Dev-101) (JavaScript-Developer-I) can not only validate their skills and knowledge level but also put their careers on the right track. By doing this you can achieve your career objectives.

Salesforce JavaScript-Developer-I Exam Syllabus Topics:

Section	Weight	Objectives
Browser and Events	17%	- Browser Developer Tools usage - Interacting with forms and user input - DOM manipulation - Event handling and listeners - Browser-specific APIs - Event propagation (bubbling and capturing)
Asynchronous Programming	13%	- Promises (creation, chaining, error handling) - Asynchronous patterns for business requirements - Callbacks - Event loop and execution flow - Async/Await syntax
Testing	7%	- Test effectiveness evaluation - Unit testing concepts - Test coverage and reliability - Writing and modifying unit tests
Debugging and Error Handling	7%	- Breakpoints and code inspection - Custom error types - Console methods for debugging - Error handling techniques (try/catch/finally)
Objects, Functions, and Classes	25%	- Object creation and manipulation - Execution flow and context - Function declarations and expressions - Higher-order functions - Variable scope and closures - Prototypal inheritance - Arrow functions - Modules and decorators - ES6 classes and inheritance
Server Side JavaScript	8%	- Server-side JavaScript implementations - Core Node.js modules - Package management (npm) - Node.js fundamentals - CLI commands
Variables, Types, and Collections	23%	- Strings, numbers, and dates - Primitive and complex data types - Variable declarations and initialization - Type coercion and conversion - Truthy and falsy evaluations - Arrays and collections - JSON parsing and manipulation

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Salesforce Certified JavaScript Developer (JS-Dev-101) Sample Questions (Q27-Q32):

NEW QUESTION # 27
developer has a web server running with Node.js. The command to start the web server is node server,js. The web server started having latency issues. Instead of a one second turn around for web requests, the developer now sees a five second turnaround, Which command can the web developer run to see what the module is doing during the latency period?

A. NODE_DEBUG =true node server.js
B. DEBUG =true node server.js
C. NODE_DEBUG =http, https node server.js
D. DEBUG = http, https node server.js

Answer: B

NEW QUESTION # 28
Refer to the expression below:
Let x = ('1' + 2) == (6 * 2);
How should this expression be modified to ensure that evaluates to false?

A. Let x = (1 + 2) == ( '6' / 2);
B. Let x = ('1' + ' 2') == ( 6 * 2);
C. Let x = (1+ 2 ) == ( 6 / 2);
D. Let x = ('1' + 2) == ( 6 * 2);

Answer: D

NEW QUESTION # 29
A developer is leading the creation of a new web server for their team that will fulfill API requests from an existing client.
The team wants a web server that runs on Node.Js, and they want to use the new web framework Minimalist.Js. The lead developer wants to advocate for a more seasoned back-end framework that already has a community around it.
Which two frameworks could the lead developer advocate for?
Choose 2 answers

A. Angular
B. Gatsby
C. Koa
D. Express

Answer: A,B

NEW QUESTION # 30
A developer wants to use a try...catch statement to catch any error that countSheep () may throw and pass it to a handleError () function.
What is the correct implementation of the try...catch?

Answer: A

NEW QUESTION # 31
Refer to the code:

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

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

Answer: B,D,E

NEW QUESTION # 32
......

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