JS-Dev-101 Practice Test Pdf - Free JS-Dev-101 Exam Dumps

Wiki Article

DOWNLOAD the newest VCEEngine JS-Dev-101 PDF dumps from Cloud Storage for free: https://drive.google.com/open?id=1fWIwEX6chVhpM4F9UzkHPj6fIc1J9e_P

Desktop practice test software, and web-based practice test software. All three VCEEngine JS-Dev-101 practice test questions formats are easy to use and compatible with all devices and operating systems. The VCEEngine JS-Dev-101 desktop practice test software and web-based practice test software both are the JS-Dev-101 Practice Exam. While practicing on Salesforce Salesforce Certified JavaScript Developer - Multiple Choice practice test software you will experience the real-timeSalesforce Certified JavaScript Developer - Multiple Choice JS-Dev-101 exam environment for preparation. This will help you to understand the pattern of final JS-Dev-101 exam questions and answers.

Salesforce JS-Dev-101 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Browser and Events: Covers DOM manipulation, event handling and propagation, browser-specific APIs, and using Browser Developer Tools to inspect code behavior.
Topic 2
  • 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 3
  • 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 4
  • Debugging and Error Handling: Covers proper error handling techniques and the use of the console and breakpoints to debug code.
Topic 5
  • Asynchronous Programming: Covers asynchronous programming concepts and understanding how the event loop controls execution flow and determines outcomes.

>> JS-Dev-101 Practice Test Pdf <<

Free Salesforce JS-Dev-101 Exam Dumps - New JS-Dev-101 Test Question

our company made our JS-Dev-101 practice guide with accountability. Our JS-Dev-101 training dumps are made by our JS-Dev-101 exam questions responsible company which means you can gain many other benefits as well. We offer free demos of our for your reference, and send you the new updates if our experts make them freely. What is more, we give some favorable discount on our JS-Dev-101 Study Materials from time to time, which mean that you can have more preferable price to buy our products.

Salesforce Certified JavaScript Developer - Multiple Choice Sample Questions (Q86-Q91):

NEW QUESTION # 86
Given the code below:
01 setCurrentUrl();
02 console.log("The current URL is: " + url);
03
04 function setCurrentUrl() {
05 url = window.location.href;
06 }
What happens when the code executes?

Answer: A

Explanation:
Inside setCurrentUrl, url is assigned without var, let, or const:
url = window.location.href;
In non-strict mode, this implicitly creates a global variable url on window.
Execution order:
setCurrentUrl(); creates/sets global url to window.location.href.
console.log("The current URL is: " + url); has access to url in global scope and prints correctly.
Thus:
url has global scope.
Line 02 runs without error and logs a valid string.
So B is correct.


NEW QUESTION # 87
A developer has a web server running with Node.js. The command to start the web server is node server.js. The web server started having latency issues. Instead of a one second turnaround for web requests, the developer now sees a five second turnaround.
Which command can the web developer run to see what the module is doing during the latency period?

Answer: A


NEW QUESTION # 88
Refer to the code below:
class Student {
constructor(name) {
this._name = name;
}
displayGrade() {
console.log(`${this._name} got 70% on test.`);
}
}
class GraduateStudent extends Student {
constructor(name) {
super(name);
this._name = "Graduate Student " + name;
}
displayGrade() {
console.log(`${this._name} got 100% on test.`);
}
}
let student = new GraduateStudent("Jane");
student.displayGrade();
What is the console output?

Answer: B

Explanation:
The correct answer is C, after correcting the option text to match the actual code.
The object is created here:
let student = new GraduateStudent("Jane");
Because GraduateStudent extends Student, its constructor runs:
constructor(name) {
super(name);
this._name = "Graduate Student " + name;
}
The call to:
super(name);
runs the parent Student constructor first and temporarily sets:
this._name = "Jane";
Then this line in the child constructor overwrites that value:
this._name = "Graduate Student " + name;
So the final value of this._name becomes:
"Graduate Student Jane"
Next, this line executes:
student.displayGrade();
Since student is an instance of GraduateStudent, JavaScript uses the overridden displayGrade() method from GraduateStudent, not the parent method from Student.
The executed method is:
displayGrade() {
console.log(`${this._name} got 100% on test.`);
}
Therefore, the console output is:
Graduate Student Jane got 100% on test.
Important correction: the original option C said something like "Better student Jackie got 100% on test.", but the actual code uses "Graduate Student " and the name "Jane". The verified corrected answer remains C.


NEW QUESTION # 89
Corrected code:
let a = "*";
let b = "**";
// x = 3;
console.log(a);
What is displayed when the code executes?

Answer: D

Explanation:
The correct answer is B because variable a is declared and initialized before it is printed.
let a = "*";
This creates a block-scoped variable named a and assigns it the string value:
"*"
The line:
// x = 3;
is a comment. JavaScript ignores comments during execution, so this line has no effect.
Then this line runs:
console.log(a);
Since a already exists and contains "*", the console displays:
* Option A is incorrect because a is defined.
Option C is incorrect because a has an assigned value, so it is not undefined.
Option D is incorrect because a was never assigned null.
Therefore, the verified answer is B.


NEW QUESTION # 90
Given the code below:
01 setCurrentUrl();
02 console.log("The current URL is: " + url);
03
04 function setCurrentUrl() {
05 url = window.location.href;
06 }
What happens when the code executes?

Answer: A

Explanation:
Inside setCurrentUrl, url is assigned without var, let, or const:
url = window.location.href;
In non-strict mode, this implicitly creates a global variable url on window.
Execution order:
setCurrentUrl(); creates/sets global url to window.location.href.
console.log("The current URL is: " + url); has access to url in global scope and prints correctly.
Thus:
url has global scope.
Line 02 runs without error and logs a valid string.
So B is correct.
________________________________________


NEW QUESTION # 91
......

Because the effect is outstanding, the JS-Dev-101 study materials are good-sale, every day there are a large number of users to browse our website to provide the JS-Dev-101 study guide materials, through the screening they buy material meets the needs of their research. Every user cherishes the precious time, seize this rare opportunity, they redouble their efforts to learn our JS-Dev-101 Exam Questions, when others are struggling, why do you have any reason to relax? So, quicken your pace, follow the JS-Dev-101 test materials, begin to act, and keep moving forward for your dreams!

Free JS-Dev-101 Exam Dumps: https://www.vceengine.com/JS-Dev-101-vce-test-engine.html

2026 Latest VCEEngine JS-Dev-101 PDF Dumps and JS-Dev-101 Exam Engine Free Share: https://drive.google.com/open?id=1fWIwEX6chVhpM4F9UzkHPj6fIc1J9e_P

Report this wiki page