Free JS-Dev-101 Practice - JS-Dev-101 Valid Dumps Book

DOWNLOAD the newest TorrentExam JS-Dev-101 PDF dumps from Cloud Storage for free: https://drive.google.com/open?id=1tGHoQe_yCkkt2k5LWCbOxw36eRT71GtO

Because these Salesforce Certified JavaScript Developer - Multiple Choice JS-Dev-101 exam dumps are designed by experts after in-depth research about the certification exam content. The Salesforce Certified JavaScript Developer - Multiple Choice exam product is made of 100% real Salesforce JS-Dev-101 Exam Questions verified by Salesforce professionals. The Salesforce Certified JavaScript Developer - Multiple Choice JS-Dev-101 Valid Dumps of TorrentExam are exceptionally curated and approved by experts. We have hired professionals who after in-depth research add the most important and real test questions in three formats of our JS-Dev-101 exam practice material.

Salesforce JS-Dev-101 Exam Syllabus Topics:

Topic	Details
Topic 1	Testing: Covers evaluating unit test effectiveness against a block of code and modifying tests to improve their coverage and reliability.
Topic 2	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 3	Browser and Events: Covers DOM manipulation, event handling and propagation, browser-specific APIs, and using Browser Developer Tools to inspect code behavior.

>> Free JS-Dev-101 Practice <<

Top Free JS-Dev-101 Practice & Leader in Certification Exams Materials & Latest updated JS-Dev-101 Valid Dumps Book

If you are busy with your work and have little time to prepare for the exam. You can just choose our JS-Dev-101 learning materials, and you will save your time. You just need to spend about 48 to 72 hours on practicing, and you can pass the exam successfully. JS-Dev-101 exam materials are edited by professional experts, therefore they are high-quality. And JS-Dev-101 Learning Materials of us also have certain quantity, and they will be enough for you to carry on practice. We offer you free demo for you to try before buying JS-Dev-101 exam dumps, so that you can know the format of the complete version.

Salesforce Certified JavaScript Developer - Multiple Choice Sample Questions (Q60-Q65):

NEW QUESTION # 60
Refer to the code:

Given the code above, which three properties are set pet1? Choose 3 answers:

A. canTalk
B. Owner
C. Type
D. Size
E. Name

Answer: A,C,D

NEW QUESTION # 61
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

A. [ ]. Concat.apply ([ ], inArray);
B. [ ]. concat.apply(inArray, [ ]);
C. []. Concat (... inArray);
D. [ ]. concat ( [ ....inArray ] );

Answer: A,C

NEW QUESTION # 62
Refer to the code:
01 const event = new CustomEvent(
02 // Missing code
03 );
04 obj.dispatchEvent(event);
A developer needs to dispatch a custom event called update to send information about recordId.
Which two options can be inserted at line 02?

A. { type: 'update', recordId: '123abc' }
B. 'update', '123abc'
C. 'update', { detail: { recordId: '123abc' } }
D. 'update', { recordId: '123abc' }

Answer: C,D

Explanation:
The correct constructor signature for CustomEvent is:
new CustomEvent(eventName, optionsObject)
Where:
eventName is a string.
optionsObject may include:
detail → used to pass custom data
bubbles
cancelable, etc.
Example:
new CustomEvent('update', {
detail: { recordId: '123abc' }
});
Now evaluate each option:
Option A
{ type: 'update', recordId: '123abc' }
Incorrect: The constructor requires (eventName, options), not a single object. type is not used this way.
Option B
'update', { detail: { recordId: '123abc' } }
Correct format. detail is the proper place for custom event data.
Option C
'update', '123abc'
Incorrect: The second argument must be an object (options), not a string.
Option D
'update', { recordId: '123abc' }
Acceptable because any extra properties on the options object are still allowed, even though best practice is to use detail.
This still creates a valid CustomEvent, and the event will dispatch successfully.
Thus the two correct answers are B and D.
JavaScript Knowledge Reference (text-only)
new CustomEvent(name, options) is the required syntax.
The detail property of the options object is the standard location for custom data.
The second argument must be an object; other types are invalid.

NEW QUESTION # 63
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?

A. The url variable has global scope and line 02 executes correctly.
B. The url variable has global scope and line 02 throws an error.
C. The url variable has local scope and line 02 executes correctly.
D. The url variable has local scope and line 02 throws an error.

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 # 64
Refer to the code below:
01 let sayHello = () => {
02 console.log('Hello, World!');
03 };
Which code executes sayHello once, two minutes from now?

A. delay(sayHello, 120000);
B. setTimeout(sayHello, 120000);
C. setInterval(sayHello, 120000);
D. setTimeout(sayHello(), 120000);

Answer: B

Explanation:
________________________________________
Comprehensive and Detailed Explanation From Exact Extract JavaScript Knowledge To schedule a function for later execution in JavaScript, the standard built-in method is:
setTimeout(functionReference, delayInMilliseconds)
Characteristics of setTimeout():
Executes only once.
Delay is specified in milliseconds.
Requires passing the function reference, not calling the function.
Two minutes is:
2 minutes = 120 seconds = 120,000 milliseconds
Now evaluate each option:
________________________________________
Option A: delay(sayHello, 120000);
Incorrect.
There is no built-in delay() function in JavaScript.
________________________________________
Option B: setTimeout(sayHello, 120000);
Correct.
sayHello is passed as a function reference, so it will execute once after 120,000 ms.
________________________________________
Option C: setTimeout(sayHello(), 120000);
Incorrect.
sayHello() calls the function immediately, and the return value (undefined) is passed to setTimeout.
This executes the function right away instead of after two minutes.
________________________________________
Option D: setInterval(sayHello, 120000);
Incorrect.
setInterval() repeats execution every 120,000 ms.
The question requires executing the function once, so this cannot be correct.
________________________________________
JavaScript Knowledge Reference (text-only)
setTimeout() schedules a function to run once after a specified delay.
Passing functionName gives a reference; passing functionName() invokes it immediately.
setInterval() repeats indefinitely, unlike setTimeout().

NEW QUESTION # 65
......

And you can also use the Salesforce JS-Dev-101 PDF on smart devices like smartphones, laptops, and tablets. The second one is the web-based Salesforce JS-Dev-101 practice exam which can be accessed through the browsers like Firefox, Safari, and Salesforce Chrome. The customers don't need to download or install excessive plugins or software to get the full advantage from web-based JS-Dev-101 Practice Tests.

JS-Dev-101 Valid Dumps Book: https://www.torrentexam.com/JS-Dev-101-exam-latest-torrent.html

P.S. Free & New JS-Dev-101 dumps are available on Google Drive shared by TorrentExam: https://drive.google.com/open?id=1tGHoQe_yCkkt2k5LWCbOxw36eRT71GtO