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Salesforce JavaScript-Developer-I Exam Syllabus Topics:

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

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Salesforce Certified JavaScript Developer (JS-Dev-101) Sample Questions (Q44-Q49):

NEW QUESTION # 44
Refer to the code declarations below:

Which three expressions return the string JavaScript?
Choose 3 answers

A. $(str1) $ (str2} ';
B. Concat (str1, str2);
C. Str1 + str2;
D. Str1.concat (str2);
E. Str1.join (str2);

Answer: A,C,D

NEW QUESTION # 45
developer publishes a new version of a package with new features that do not break backward compatibility. The previous version number was 1.1.3.
Following semantic versioning format, what should the new package version number be?

A. 2.0.0
B. 1.2.0
C. 1.2.3
D. 1.1.4

Answer: A

NEW QUESTION # 46
There is a new requirement for a developer to implement a currPrice method that will return the current price of the item or sales..

What is the output when executing the code above

A. 0
B. 50Uncaught TypeError: saleItem,desrcription is not a function5080
C. 5080Uncaught ReferenceError:this,discount is undefined72
D. 1

Answer: D

NEW QUESTION # 47
Refer to the code below:
Const searchTest = 'Yay! Salesforce is amazing!" ;
Let result1 = searchText.search(/sales/i);
Let result 21 = searchText.search(/sales/i);
console.log(result1);
console.log(result2);
After running this code, which result is displayed on the console?

A. > true > false
B. > 5 > 0
C. > 5 >undefined
D. > 5 > -1

Answer: C

Explanation:

NEW QUESTION # 48
Given the code below:

Which method can be used to provide a visual representation of the list of users and to allow sorting by the name or email attribute?

A. console.groupCol lapsed (usersList) ;
B. console.group(usersList) ;
C. console.info(usersList) ;
D. console.table(usersList) ;

Answer: B

NEW QUESTION # 49
......

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