P.S. Free & New JS-Dev-101 dumps are available on Google Drive shared by Real4exams: https://drive.google.com/open?id=1zC1Ixz_uIJYCLP-An7DadukWULtDTa8S
The study material is made by professionals while thinking about our users. We have made the product user-friendly so it will be an easy-to-use learning material. We even guarantee our users that if they couldn't pass the Salesforce JS-Dev-101 Certification Exam on the first try with their efforts, they can claim a full refund of their payment from us (terms and conditions apply).
| Topic | Details |
|---|---|
| Topic 1 |
|
| Topic 2 |
|
| Topic 3 |
|
>> Real JS-Dev-101 Exam Dumps <<
Passing the Salesforce Certified JavaScript Developer - Multiple Choice JS-Dev-101 exam is your best career opportunity. The rich experience with relevant certificates is important for enterprises to open up a series of professional vacancies for your choices. Salesforce JS-Dev-101 learning quiz bank and learning materials look up the latest questions and answers based on the topics you choose. This choice will serve as a breakthrough of your entire career, so prepared to be amazed by high quality and accuracy rate of our JS-Dev-101 Study Guide.
NEW QUESTION # 129
A developer is leading the creation of a new web server for their team that will fulfill API requests from an existing client. The team wants a web server that runs on Node.js, and they want to use the new web framework Minimalist.js. The lead developer wants to advocate for a more seasoned back-end framework that already has a community around it.
Which two frameworks could the lead developer advocate for?
Answer: C,D
Explanation:
Comprehensive and Detailed Explanation From Exact Extract JavaScript Knowledge:
The question is about:
Web frameworks that run on Node.js
Used to build servers and APIs
With established communities.
From the given options:
Angular:
A front-end framework running in the browser, not a Node.js server framework.
Gatsby:
A React-based static site generator; uses Node tooling but is not primarily a Node server framework.
Next / Next.js:
Server-side rendering / full-stack frameworks built on Node.js and React.
Used to create both server-rendered pages and APIs.
They have active communities and are "seasoned" compared to a hypothetical Minimalist.js.
Although typical Node back-end frameworks would include Express.js, Koa, or NestJS, given the options provided, the best fits for server-side frameworks with Node.js and an ecosystem are:
Next (interpreted as Next.js)
Next.js
Thus, the correct pair from the list is B and D.
Concepts: Node.js web frameworks, server-side rendering, community-backed frameworks vs minimal/new frameworks.
________________________________________
NEW QUESTION # 130
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?
Answer: A
Explanation:
We have a ternary:
account.style.display = accountName.includes(parsedSearchString)
? /* if true */
/* if false */;
Requirement:
If the account matches the search string โ show it.
If it does not match โ 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.
NEW QUESTION # 131
A developer implements a function that adds a few values.
```javascript
function sum(num1, num2, num3) {
if (num3 === undefined) {
num3 = 0;
}
return num1 + num2 + num3;
}
```
Which three options can the developer invoke for this function to get a return value of 10?
Choose 3 answers
Answer: C,E
NEW QUESTION # 132
Refer to the code below:
01 let o = {
02 get js() {
03 let city1 = String('St. Louis');
04 let city2 = String('New York');
05
06 return {
07 firstCity: city1.toLowerCase(),
08 secondCity: city2.toLowerCase(),
09 }
10 }
11 }
What value can a developer expect when referencing o.js.secondCity?
Answer: C
Explanation:
________________________________________
Comprehensive and Detailed Explanation From Exact Extract JavaScript Knowledge
1. Getter Functions in JavaScript
In JavaScript, when an object uses the get keyword, it defines a getter method. Accessing a getter property executes the function and returns its value. Thus:
o.js
does not return the getter function; instead, it executes the function located at:
get js() { ... }
and returns the object inside the return block.
________________________________________
2. Behavior of String() and toLowerCase()
Inside the getter:
let city1 = String('St. Louis');
let city2 = String('New York');
String() creates a string value.
Then, the returned object is constructed as:
{
firstCity: city1.toLowerCase(),
secondCity: city2.toLowerCase(),
}
The method toLowerCase() is a standard JavaScript string method that returns a new string with all alphabetic characters converted to lowercase.
Therefore:
city2.toLowerCase()
returns:
'new york'
________________________________________
3. Referencing the Property
When the developer writes:
o.js.secondCity
the following happens:
The getter js runs and returns an object.
The returned object includes the property:
secondCity: 'new york'
Accessing .secondCity retrieves the lowercase string 'new york'.
Therefore, the correct value is 'new york'.
________________________________________
Why the Other Options Are Incorrect
A . undefined - incorrect because the property secondCity clearly exists in the returned object.
B . An error - incorrect because no invalid operations occur; all methods and properties are valid.
C . 'New York' - incorrect because toLowerCase() transforms the string to lowercase.
________________________________________
JavaScript Knowledge Reference (Text-Based)
Getter methods using the get keyword return computed values when accessed.
JavaScript String values support the toLowerCase() method, which returns a lowercase version of the original string.
Accessing nested properties like o.js.secondCity triggers the getter, returning the constructed object.
NEW QUESTION # 133
Given the following code:
01 let x = null;
02 console.log(typeof x);
What is the output of line 02?
Answer: A
Explanation:
This question focuses on the typeof operator and how JavaScript represents the type of the value null.
Declaration on line 1:
let x = null;
Here:
x is explicitly assigned the value null.
In JavaScript, null is a special primitive value that represents "no value" or "empty value".
Line 2:
console.log(typeof x);
The typeof operator returns a string indicating the type of the operand. For example:
typeof 1 returns "number"
typeof "hello" returns "string"
typeof true returns "boolean"
typeof undefined returns "undefined"
typeof {} returns "object"
typeof [] returns "object" (arrays are objects)
typeof function() {} returns "function"
For null, due to an early design decision in JavaScript, the result is:
typeof null === "object"
This is a known historical quirk of the language:
Although null is a primitive and conceptually means "no object", typeof null returns the string "object".
Therefore, typeof x when x is null evaluates to "object".
So on line 2, the value printed is:
"object"
This matches option A.
The incorrect options are:
B . "undefined": would be typeof x if x were undefined, not null.
C . "x": typeof returns a string describing the type of the value, not the variable name.
D . "null": although intuitive, JavaScript does not return "null" for typeof null; it returns "object" instead.
Therefore, the correct answer is:
Answe r: A
JavaScript knowledge / study guide reference concepts:
typeof operator and its return values
Primitive types in JavaScript (null, undefined, number, string, boolean, symbol, bigint) Historical behavior: typeof null returning "object" Difference between null and undefined in JavaScript
NEW QUESTION # 134
......
The JS-Dev-101 exam questions formats are PDF dumps files, desktop practice test software, and web-based practice test software. All these JS-Dev-101exam questions format hold some common and unique features. Such as JS-Dev-101 PDF dumps file is the PDF version of Salesforce Certified JavaScript Developer - Multiple Choice exam dumps that works Real4exams all operating systems and devices. Whereas the other two JS-Dev-101 Practice Test questions formats are concerned, both are the mock JS-Dev-101 exam. Both will give you a real-time Salesforce Certified JavaScript Developer - Multiple Choice exam preparation environment and you get experience to attempt the JS-Dev-101 exam preparation experience before the final exam.
JS-Dev-101 Pass Test: https://www.real4exams.com/JS-Dev-101_braindumps.html
BONUS!!! Download part of Real4exams JS-Dev-101 dumps for free: https://drive.google.com/open?id=1zC1Ixz_uIJYCLP-An7DadukWULtDTa8S