Salesforce JS-Dev-101 Exam | JS-Dev-101 Learning Engine - Assist you to Pass JS-Dev-101 Exam One Time

The language of our JS-Dev-101 study torrent is easy to be understood and the content has simplified the important information. Our product boosts the function to simulate the exam, the timing function and the self-learning and the self-assessment functions to make the learners master the JS-Dev-101 guide torrent easily and in a convenient way. Based on the plenty advantages of our product, you have little possibility to fail in the exam. We guarantee to you that we provide the best JS-Dev-101 study torrent to you and you can pass the exam with high possibility and also guarantee to you that if you fail in the exam unfortunately we will provide the fast and simple refund procedures.

Salesforce JS-Dev-101 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Debugging and Error Handling: Covers proper error handling techniques and the use of the console and breakpoints to debug code.
Topic 2
  • Browser and Events: Covers DOM manipulation, event handling and propagation, browser-specific APIs, and using Browser Developer Tools to inspect code behavior.
Topic 3
  • Objects, Functions, and Classes: Covers function, object, and class implementations to meet business requirements, along with the use of modules, decorators, variable scope, and execution flow.
Topic 4
  • Variables, Types, and Collections: Covers declaring and initializing variables, working with strings, numbers, dates, arrays, and JSON, along with understanding type coercion and truthy
  • falsy evaluations.
Topic 5
  • Server Side JavaScript: Covers Node.js implementations, CLI commands, core modules, and package management solutions for given scenarios.
Topic 6
  • Testing: Covers evaluating unit test effectiveness against a block of code and modifying tests to improve their coverage and reliability.

>> JS-Dev-101 Learning Engine <<

JS-Dev-101 Dumps Cost - JS-Dev-101 Exam Consultant

If you are going to attend the JS-Dev-101 exam, and want to get the certificate of the JS-Dev-101exam, then consider the product of our company, since the pass rate of our company are above 98%, and if you attend the exam and failed it within 60 days after the purchasing , money back guarantee. Just think that you just need to spend some money for the JS-Dev-101 Exam, you will get the certificate of the business, and you not just have a more certificate than others, it's not only a skill, but also a chance. With the certificate for the JS-Dev-101 exam, you are aproved by the professionals and you are also a professional in this industry.

Salesforce Certified JavaScript Developer - Multiple Choice Sample Questions (Q41-Q46):

NEW QUESTION # 41
A developer executes:
document.cookie;
document.cookie = 'key=John Smith';
What is the behavior?

Answer: A

Explanation:
________________________________________
Comprehensive and Detailed Explanation From Exact Extract JavaScript Knowledge document.cookie retrieves the cookie string.
Setting document.cookie = 'key=John Smith' adds or updates only that one cookie.
Important details:
Writing to document.cookie does not overwrite all cookies.
The browser does not require URL encoding, though it is recommended. Non-encoded spaces are allowed and automatically handled.
document.cookies does not exist; the correct property is document.cookie.
Therefore, the correct behavior:
Cookies are read.
A new cookie key=John Smith is set.
Existing cookies remain.
________________________________________
JavaScript Knowledge Reference (text-only)
Writing document.cookie appends or updates cookies, not replaces them.
document.cookie is both getter and setter for cookie strings.


NEW QUESTION # 42
developer is trying to convince management that their team will benefit from using Node.js for a backend server that they are going to create. The server will be a web server that handles API requests from a website that the teamhas already built using HTML, CSS, and JavaScript.
Which three benefits of Node.js can the developer use to persuade their manager?
Choose 3 answers:

Answer: B,C,E


NEW QUESTION # 43
A developer is required to write a function that calculates the sum of elements in an array but is getting undefined every time the code is executed. The developer needs to find what is missing in the code below.
Const sumFunction = arr => {
Return arr.reduce((result, current) => {
//
Result += current;
//
), 10);
);
Which option makes the code work as expected?

Answer: A


NEW QUESTION # 44
Refer to the code snippet:
01 let array = [1, 2, 3, 4, 4, 5, 4, 4];
02 for (let i = 0; i < array.length; i++) {
03 if (array[i] === 4) {
04 array.splice(i, 1);
05 i--;
06 }
07 }
What is the value of array after the code executes?

Answer: B

Explanation:
Comprehensive and Detailed
The loop removes every 4:
Start: [1, 2, 3, 4, 4, 5, 4, 4]
i=0 → 1 (no change)
i=1 → 2 (no change)
i=2 → 3 (no change)
i=3 → 4 → splice removes index 3 → [1,2,3,4,5,4,4], then i-- → 2
Next loop, i=3 → 4 again → splice → [1,2,3,5,4,4], i-- → 2
i=3 → 5 (no change)
i=4 → 4 → splice → [1,2,3,5,4], i-- → 3
i=4 → 4 → splice → [1,2,3,5], i-- → 3
Next i=4, array.length is 4 → loop ends.
All 4s removed, final array: [1, 2, 3, 5].
________________________________________


NEW QUESTION # 45
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?

Answer: D

Explanation:
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.
________________________________________


NEW QUESTION # 46
......

These formats save you from going through sleepless preparation nights and hectic JS-Dev-101 test practice. TestPassKing JS-Dev-101 practice exams come in these two versions: desktop software and web-based test. A team of experts has approved this JS-Dev-101 practice test after a thorough analysis of the interface and content. The Salesforce JS-Dev-101 Mock Test has a built-in tracker which keeps a record of your progress in each take for you to easily analyze and improve your Salesforce JS-Dev-101 preparation.

JS-Dev-101 Dumps Cost: https://www.testpassking.com/JS-Dev-101-exam-testking-pass.html