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Salesforce Certified JavaScript Developer Exam (JS-Dev-101) - Salesforce Exam Questions

Last updated on June 20, 2026

97% Exam Compliance
149 Total Questions
1
Question
Refer to the code below: 01 funetion Person() (
02 thie. fixsttane = "Zoha'y
os}
05 Perscn.prototype = [
06 jek: x => ‘Developer’
onde
09 const myFather = new Peracn():
10 const result = myFather.firstiame + ' * + myFather.jeb()

What is the value of result after line 10 executes?
Options
A " John Developer"
B "undefined Developer"
C " John undefined"
D Error: myFather.job is not a function
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2
Question
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?
Options
A The url variable has global scope and line 02 throws an error.
B The url variable has local scope and line 02 throws an error.
C The url variable has global scope and line 02 executes correctly.
D The url variable has local scope and line 02 executes correctly.
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3
Question
Given the code below:
01 function Person(name, email) {
02 this.name = name;
03 this.email = email;
04 }
05
06 const john = new Person('John', 'john@email.com');
07 const jane = new Person('Jane', 'jane@email.com');
08 const emily = new Person('Emily', 'emily@email.com');
09
10 let usersList = [john, jane, emily];

Which method can be used to provide a visual representation of the list of users and to allow sorting by the name or email attribute?
Options
A console.table(usersList);
B console.info(usersList);
C console.groupCollapsed(usersList);
D console.group(usersList);
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4
Question
Code:
01 const sayHello = (name) => {
02 console.log('Hello ', name);
03 };
04
05 const world = () => {
06 return 'World';
07 };
08
09 sayHello(world);
This does not print "Hello World".

What change is needed?
Options
A Change line 2 to console.log('Hello', name());
B Change line 5 to function world() {
C Change line 7 to }();
D Change line 9 to sayHello(world)();
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5
Question
01 let obj = {
02 fool 1, 03 bari 2 04 )
05 let output = [7#
08 output .push (something);
09 ) 10 11 conssie.tog (output):

What is the outpouf tlin e 117
Options
A [bar, *foo"]
B ["foo:1", "bar:2"]
C ["foo", "bar"]
D (1,2)
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