Salesforce JS-Dev-101 Real Dumps Portable Version (PDF)

What's more, part of that RealVCE JS-Dev-101 dumps now are free: https://drive.google.com/open?id=1S6ybMXJeis2ONk1RIwyTkwodklScfass

It semms that it's a terrible experience for some candicates to prepare and take part in the JS-Dev-101 Exam, we will provide you the JS-Dev-101 training materials to help you pass it succesfully. The JS-Dev-101 training materials have the knowledgef points, it will help you to command the knowledge of the Salesforce Certified JavaScript Developer - Multiple Choice. The pass rate is above 98%, which can ensure you pass it. If you have the Desktop version, it stimulates the real environmet, you can konwn the exact situaton about the exam,and your nervous for it will be reduced.

Salesforce JS-Dev-101 Exam Syllabus Topics:

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

Actual Salesforce JS-Dev-101 Exam Dumps - Achieve Success In Exam

RealVCE provides you with tri-format prep material compiled under the supervision of 90,000 Salesforce professionals from around the world that includes everything you need to pass the Salesforce JS-Dev-101 Exam on your first try. The preparation material consists of a PDF, practice test software for Windows, and a web-based practice exam. All of these preparation formats are necessary for complete and flawless preparation.

Salesforce Certified JavaScript Developer - Multiple Choice Sample Questions (Q148-Q153):

NEW QUESTION # 148
Given the JavaScript below:
function onLoad() {
console.log("Page has loaded!");
}
Where can the developer see the log statement after loading the page in the browser?

A. On the browser JavaScript console
B. On the webpage console log
C. In the browser performance tools log
D. On the terminal console running the web server

Answer: A

Explanation:
console.log() in browser-side JavaScript writes output to the browser's JavaScript console, which is available in the browser's Developer Tools.
In a typical browser (Chrome, Firefox, Edge, etc.), you open DevTools and go to the Console tab.
Any console.log("Page has loaded!"); executed in page JavaScript will appear there.
Why A is correct:
The function onLoad is a client-side function (runs in the browser).
When it executes, the console.log call goes to the browser's JavaScript console, not the server.
Why the others are incorrect:
B . On the terminal console running the web server
That console shows logs from the server-side runtime (e.g., Node.js logs).
This code is clearly browser-side JavaScript (no Node.js or server context shown).
Therefore, the output does not appear in the terminal.
C . In the browser performance tools log
Performance tools (Timeline, Performance tab, etc.) show metrics about rendering, CPU time, network, etc., not generic console.log messages.
console.log messages appear in the Console tab, not in performance logs.
D . On the webpage console log
There is no built-in concept of a "webpage console log" UI rendered on the page itself by default.
Unless you explicitly code something to display logs in the DOM, console.log output is not visible on the page, only in Developer Tools.
Therefore, the correct place to see that log is:
Answe r: A
JavaScript knowledge / Study Guide references (concept names only, no links):
Browser Developer Tools - Console tab
console.log() in client-side JavaScript
Difference between client-side logs and server-side logs

NEW QUESTION # 149
Refer to the code below:

Line 05 causes an error. What are the values of greeting and salutation once code completes?

A. Greeting is Goodbye and salutation is Hello, Hello.
B. Greeting is Hello and salutation is I say hello.
C. Greeting is Hello and salutation is Hello, Hello.
D. Greeting is Goodbye and salutation is I say Hello.

Answer: C

NEW QUESTION # 150
Which two code snippets showworking examples of a recursive function?
Choose 2 answers

A. Const sumToTen = numVar => {If (numVar < 0)Return;return sumToTen(numVar + 1)};
B. Function factorial ( numVar ) {If (numVar < 0) return;If ( numVar === 0 ) return 1;return numVar -1;
C. Let countingDown = function(startNumber) {If ( startNumber >0) {console.log(startNumber) ;return countingDown(startNUmber);} else {return startNumber;}};
D. Const factorial =numVar => {If (numVar < 0) return;If ( numVar === 0 ) return 1;returnnumVar * factorial ( numVar - 1 );};

Answer: C,D

NEW QUESTION # 151
A class was written to represent items for purchase in an online store, and a second class representing items that are on sale at a discounted price. The constructor sets the name to the first value passed in. There is a new requirement for a developer to implement a description method that will return a brief description for Item and SaleItem.
01 let regItem = new Item('Scarf', 55);
02 let saleItem = new SaleItem('Shirt', 80, .1);
03 Item.prototype.description = function() { return 'This is a ' + this.name; }
04 console.log(regItem.description());
05 console.log(saleItem.description());
06
07 SaleItem.prototype.description = function() { return 'This is a discounted ' + this.name; } What is the output when executing the code above?

A. This is a Scarf
This is a Shirt
This is a Scarf
This is a discounted Shirt
B. This is a Scarf
Uncaught TypeError: saleItem.description is not a function
This is a Scarf
This is a discounted Shirt
C. This is a Scarf
Uncaught TypeError: saleItem.description is not a function
This is a Shirt
This is a discounted Shirt
D. This is a Scarf
This is a Shirt
This is a discounted Scarf
This is a discounted Shirt

Answer: A

Explanation:
Comprehensive and Detailed
Assuming SaleItem inherits from Item via prototype (e.g. SaleItem.prototype = Object.create(Item.prototype)):
Lines 01-02: create regItem and saleItem.
Line 03: define Item.prototype.description.
Now both regItem and saleItem (via inheritance) have a description method from Item.prototype.
Line 04: regItem.description() → 'This is a Scarf'.
Line 05: saleItem.description() → 'This is a Shirt' (same method, but this.name is 'Shirt').
Line 07: SaleItem.prototype.description = ... overrides description only for SaleItem instances going forward.
If we imagine calling regItem.description() and saleItem.description() again after line 07:
regItem.description() still uses Item.prototype.description → 'This is a Scarf'.
saleItem.description() now uses SaleItem.prototype.description → 'This is a discounted Shirt'.
Those four lines correspond to option B.

NEW QUESTION # 152
Which two console logs output NaN?

A. console.log(10 / 'five');
B. console.log(10 / 0);
C. console.log(10 / Number('5'));
D. console.log(parseInt('two'));

Answer: A,D

Explanation:
Comprehensive and Detailed Explanation From JavaScript Knowledge:
Recall:
NaN stands for "Not-a-Number".
Arithmetic involving non-numeric values that cannot be converted to numbers often results in NaN.
Check each:
A . 10 / 0
In JavaScript, dividing a positive number by 0 results in Infinity, not NaN.
So this logs Infinity.
B . parseInt('two')
parseInt tries to parse a numeric prefix from the string.
'two' does not start with numeric digits, so parseInt('two') returns NaN.
The console log prints NaN.
C . 10 / Number('5')
Number('5') → 5.
10 / 5 → 2.
Logs 2, not NaN.
D . 10 / 'five'
'five' is coerced to a number using Number('five'), which is NaN.
10 / NaN → NaN.
Logs NaN.
So the console logs that output NaN are from B and D.
Relevant concepts: NaN, Infinity, parseInt, Number() coercion, arithmetic with invalid numeric values.
________________________________________

NEW QUESTION # 153
......

There is a ton of Salesforce Certified JavaScript Developer - Multiple Choice (JS-Dev-101) prep material available on the internet. But the main thing to notice is their validity and reliability. Many applicants remain unsuccessful in locating the right Salesforce Certified JavaScript Developer - Multiple Choice (JS-Dev-101) practice test and lose their time and money.

Latest JS-Dev-101 Test Preparation: https://www.realvce.com/JS-Dev-101_free-dumps.html

P.S. Free & New JS-Dev-101 dumps are available on Google Drive shared by RealVCE: https://drive.google.com/open?id=1S6ybMXJeis2ONk1RIwyTkwodklScfass