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| Certification Vendor: | Salesforce |
|---|---|
| Exam Name: | Salesforce Certified JavaScript Developer I Exam |
| Exam Number: | JS-Dev-101 / JavaScript-Developer-I |
| Exam Duration: | 105 minutes |
| Passing Score: | 65% |
| Real Exam Qty: | 60 scored + up to 5 unscored |
| Related Certifications: | Salesforce Certified Lightning Web Components Specialist Salesforce Certified Platform Developer I |
| Certificate Validity Period: | No expiration; requires regular maintenance via Trailhead modules |
| Exam Format: | Multiple-choice, Multiple-select |
| Available Languages: | Japanese, English |
| Exam Price: | USD 200 (+ applicable taxes) |
| Recommended Training: | Salesforce JavaScript Developer I Certification Prep |
| Exam Registration: | Salesforce Certification Registration |
| Sample Questions: | Salesforce JavaScript-Developer-I Sample Questions |
| Exam Way: | Online proctored or onsite at authorized testing centers |
| Pre Condition: | No formal prerequisites; 1–2 years of JavaScript development experience recommended |
| Official Syllabus URL: | https://trailhead.salesforce.com/credentials/javascript-developer-i |
>> JavaScript-Developer-I Reliable Test Answers <<
Each format has a pool of Salesforce Certified JavaScript Developer (JS-Dev-101) (JavaScript-Developer-I) actual questions which have been compiled under the guidance of thousands of professionals worldwide. Questions in this product will appear in the Salesforce JavaScript-Developer-I final test. Hence, memorizing them will help you get prepared for the JavaScript-Developer-I examination in a short time. The product of ExamDiscuss comes in PDF, desktop practice exam software, and JavaScript-Developer-I web-based practice test. To give you a complete understanding of these formats, we have discussed their features below.
The Salesforce JavaScript-Developer-I Exam itself consists of 60 multiple-choice questions, which must be completed within a time limit of 105 minutes. The questions are designed to test your knowledge of various topics related to JavaScript and Salesforce. To pass the exam, you must score at least 68 percent.
NEW QUESTION # 40
Refer to the code below:
function foo () {
const a =2;
function bat() {
console.log(a);
}
return bar;
}
Why does the function bar have access to variable a ?
Answer: B
NEW QUESTION # 41
Refer to the code below:
Which replacement for the conditional statement on line 02 allows a developer to correctly determine that a specific element, myElement on the page had been clicked?
Answer: A
NEW QUESTION # 42
Refer to the code below
let inArray = [[1,2],[3,4,5]];
which two statements results in the array [1,2,3,4,5]?
choose 2 answer
Answer: A,C
NEW QUESTION # 43
Refer to the code snippet below:
Let array = [1, 2, 3, 4, 4, 5, 4, 4];
For (let i =0; i < array.length; i++)
if (array[i] === 4) {
array.splice(i, 1);
}
}
What is the value of array after the code executes?
Answer: B
Explanation:
NEW QUESTION # 44
A developer has a fizzbuzz function that, when passed in a number, returns the following:
* ' fizz ' if the number is divisible by 3.
* ' buzz ' if the number is divisible by 5.
* ' fizzbuzz ' if the number is divisible by both 3 and 5.
* Empty string if the number is divisible by neither 3 nor 5.
Which two test cases properly test scenarios for the fizzbuzz function?
Answer: A,B
Explanation:
The correct answers are B and D .
A strong test case checks whether the actual output matches the expected behavior of the function.
For Option B :
let res = fizzbuzz(15);
console.assert(res === ' fizzbuzz ' );
The number 15 is divisible by both 3 and 5:
15 % 3 === 0
15 % 5 === 0
So the correct return value is:
' fizzbuzz '
That makes option B a valid test.
For Option D :
let res = fizzbuzz(Infinity);
console.assert(res === ' ' );
Infinity is not a normal finite divisible number. In JavaScript:
Infinity % 3
Infinity % 5
produce NaN, and comparisons such as:
Infinity % 3 === 0
are false.
So a typical fizzbuzz implementation would not treat Infinity as divisible by 3 or 5, meaning it should return:
' '
That makes option D a valid test for the "neither divisible by 3 nor 5" path.
Now compare the incorrect options:
Option A is wrong because:
fizzbuzz(3)
should return:
' fizz '
not:
' buzz '
Option C is wrong because the function specification says the function returns strings such as ' fizz ' , ' buzz '
, ' fizzbuzz ' , or ' ' . It does not say the function returns numeric NaN.
So this assertion is not appropriate:
console.assert(isNaN(res));
Therefore, the verified answers are B and D .
NEW QUESTION # 45
......
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