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우리의 덤프는 기존의 시험문제와 답과 시험문제분석 등입니다. Itexamdump에서 제공하는Salesforce JS-Dev-101시험자료의 문제와 답은 실제시험의 문제와 답과 아주 비슷합니다. Itexamdump는 여러분이 한번에Salesforce JS-Dev-101인증시험을 패스함을 보장 드립니다.
| Certification Vendor: | Salesforce |
|---|---|
| Exam Name: | Salesforce Certified JavaScript Developer I |
| Exam Number: | JS-Dev-101 |
| Exam Price: | $200 USD |
| Exam Duration: | 105 minutes |
| Passing Score: | 65% |
| Real Exam Qty: | 60 (plus up to 5 unscored pilot questions) |
| Available Languages: | English |
| Certificate Validity Period: | Lifetime (No renewal required) |
| Related Certifications: | Lightning Web Components Specialist Superbadge Salesforce Certified JavaScript Developer I |
| Exam Format: | Multiple Select, Multiple Choice |
| Sample Questions: | Salesforce JS-Dev-101 Sample Questions |
| Exam Way: | Online (Proctored) |
| Pre Condition: | Completion of the Lightning Web Components Specialist Superbadge is required to earn the full credential, though it can be completed before or after the exam. |
| Official Syllabus URL: | https://trailhead.salesforce.com/en/credentials/javascriptdeveloperi |
Itexamdump는 고객님의 IT자격증취득의 작은 소원을 이루어지게 도워드리는 IT인증시험덤프를 제공해드리는 전문적인 사이트입니다. Itexamdump 표 Salesforce인증JS-Dev-101시험덤프가 있으면 인증시험걱정을 버리셔도 됩니다. Itexamdump 표 Salesforce인증JS-Dev-101덤프는 시험출제 예상문제를 정리해둔 실제시험문제에 가장 가까운 시험준비공부자료로서 공을 들이지않고도 시험패스가 가능합니다.
| 주제 | 소개 |
|---|---|
| 주제 1 |
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| 주제 2 |
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| 주제 3 |
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질문 # 126
Given the JavaScript below:
01 function filterDOM(searchString){
02 const parsedSearchString = searchString && searchString.toLowerCase();
03 document.querySelectorAll('.account').forEach(account => {
04 const accountName = account.innerHTML.toLowerCase();
05 account.style.display = accountName.includes(parsedSearchString) ? /* Insert code here */;
06 });
07 }
Which code should replace the placeholder comment on line 05 to hide accounts that do not match the search string?
정답：C
설명：
We have a ternary:
account.style.display = accountName.includes(parsedSearchString)
? /* if true */
/* if false */;
Requirement:
If the account matches the search string → show it.
If it does not match → hide it.
For display:
Show: 'block' (or similar visible value).
Hide: 'none'.
So we want:
account.style.display = accountName.includes(parsedSearchString)
? 'block'
'none';
That corresponds to option A.
Why others are wrong:
B, C use values suitable for visibility, not display.
D ('none' : 'block') inverts the logic, hiding matches and showing non-matches.
질문 # 127
Refer to the following object:
01 const cat = {
02 firstName: 'Fancy',
03 lastName: 'Whiskers',
04 get fullName(){
05 return this.firstName + ' ' + this.lastName;
06 }
07 };
How can a developer access the fullName property for cat?
정답：A
설명：
fullName is defined as a getter:
get fullName() { ... }
Getters are accessed like properties, not like functions.
So:
cat.fullName; // "Fancy Whiskers"
No parentheses.
Why others are wrong:
A: cat.fullName() tries to call the returned string as a function.
B and C: These properties (get, function) do not exist; they are misinterpretations of syntax.
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질문 # 128
Refer to the code below:
Let inArray =[ [ 1, 2 ] , [ 3, 4, 5 ] ];
Which two statements result in the array [1, 2, 3, 4, 5] ?
Choose 2 answers
정답：B,D
질문 # 129
What are two unique features of fat-arrow functions compared to normal function definitions?
정답：A,D
설명：
Arrow functions have two defining characteristics:
Implicit return when written as a single expression:
const fn = () => 5; // returns 5 automatically
This is unique to arrow functions → A is correct.
Lexical this binding:
Arrow functions do not create their own this.
Instead, they use the this value from the surrounding scope → B is correct.
Incorrect options:
C is false: There is no special argument called parentThis.
D is the opposite of arrow function behavior:
Normal functions create their own this; arrow functions do not.
JavaScript Knowledge Reference (text-only)
Arrow functions have lexical this binding.
Arrow functions support implicit return for single expressions.
질문 # 130
A developer creates a new web server that uses Node.js. It imports a server library that uses events and callbacks for handling server functionality. The server library is imported with require and is made available to the code by a variable named server. The developer wants to log any issues that the server has while booting up.
Which code logs an error at boot time with an event?
정답：D
설명：
Event-driven Node-style APIs expose events via .on(eventName, handler).
To listen for error events:
server.on('error', (error) => {
console.log('ERROR', error);
});
A and B assume methods .error or .catch that don't exist on typical event emitters.
C only catches synchronous errors from server.start(), not async event-based errors.
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질문 # 131
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JS-Dev-101시험패스자료: https://www.itexamdump.com/JS-Dev-101.html
참고: Itexamdump에서 Google Drive로 공유하는 무료 2026 Salesforce JS-Dev-101 시험 문제집이 있습니다: https://drive.google.com/open?id=1vas8aVxeOpiEytKXwfJ3QBIBDqjg7J4Y