Salesforce JavaScript-Developer-I Exam Overviews & JavaScript-Developer-I Valid Practice Materials

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Salesforce JavaScript-Developer-I Exam Syllabus Topics:

Section	Objectives
Salesforce Platform Integration	- Security considerations in Salesforce JavaScript - Calling Apex methods from JavaScript - Lightning Web Components (LWC) JavaScript usage
Asynchronous JavaScript	- Error handling in async workflows - Promises and async/await - Event loop and concurrency model
Testing and Debugging	- Unit testing principles - Debugging techniques and tools
Browser and DOM Interaction	- Event handling and propagation - Browser APIs (fetch, storage, timers) - DOM manipulation and traversal
JavaScript Language Fundamentals	- Functions, scope, and closures - ES6+ syntax and features - Data types, variables, and operators

>> Salesforce JavaScript-Developer-I Exam Overviews <<

JavaScript-Developer-I Valid Practice Materials, JavaScript-Developer-I Valid Test Topics

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Salesforce Certified JavaScript Developer (JS-Dev-101) Sample Questions (Q137-Q142):

NEW QUESTION # 137
Refer to the following code block:

What is the value of output after the code executes?

A. 0
B. 1
C. 2
D. 3

Answer: D

NEW QUESTION # 138
A developer wants to leverage a module to print a price in pretty format, and has imported a method as shown below:
Import printPrice from '/path/PrincePrettyPrint. Js';
Based on the code, what must be true about the printPrice function of the PricePrettyPrint modules for this import to work?

A. printPrice must be named export
B. printPrice must be an default export
C. printPrice must be a multi export
D. printPrice must be an all export

Answer: A

NEW QUESTION # 139
bar, awesome is a popular JavaScript module. the versions publish to npm are:

Teams at Universal Containers use this module in a number of projects. A particular project has thepackage, json definition below.

A developer runs this command: npm install.
Which version of bar .awesome is installed?

A. 1.3.5
B. 1.4.0
C. The command fails, because version 130 is not found
D. 1.3.1

Answer: A

NEW QUESTION # 140
Refer to the code:

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

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

Answer: B,D,E

NEW QUESTION # 141
Refer to the code below:
01 const exec = (item, delay) =>{
02 new Promise(resolve => setTimeout( () => resolve(item), delay)),
03 async function runParallel() {
04 Const (result1, result2, result3) = await Promise.all{
05 [exec ('x', '100') , exec('y', 500), exec('z', '100')]
06 );
07 return `parallel is done: $(result1) $(result2)$(result3)`;
08 }
}
}
Which two statements correctly execute the runParallel () function?
Choose 2 answers

A. runParallel () .then(data);
B. runParallel ( ). done(function(data){
return data;
});
C. Async runParallel () .then(data);
D. runParallel () .then(function(data)
return data

Answer: B,D

NEW QUESTION # 142
......

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