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Salesforce JavaScript-Developer-I certification exam is a multiple-choice exam that tests a developer's ability to use JavaScript to implement business logic and user interfaces in Salesforce applications. JavaScript-Developer-I exam consists of 60 questions and has a time limit of 105 minutes. To pass the exam, a developer must score at least 68% overall. JavaScript-Developer-I Exam covers a range of topics, including fundamentals of JavaScript, Apex and Visualforce, and the Lightning Component Framework. In addition to validating a developer's skills and knowledge, the Salesforce JavaScript-Developer-I certification can also help developers advance their careers and increase their earning potential.

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Salesforce Certified JavaScript Developer (JS-Dev-101) Sample Questions (Q62-Q67):

NEW QUESTION # 62
Refer to the following object.

How can a developer access the fullName property for dog?

A. Dog.fullName ( )
B. Dog, get, fullName
C. Dog.fullName
D. Dog, function, fullName

Answer: C

NEW QUESTION # 63
In the browser, the window object is often used to assign variables that require the broadcast scope in an application Node is application do not have access to the window object by default.
Which two methods are used to address this? Choose 2 answer

A. Create a new window object in the root file.
B. Assign variables to the global object.
C. Assign variables to module, exports and require them as needed.
D. Use the document instead of the window object.

Answer: A,D

NEW QUESTION # 64
Refer to the code below (assuming Promise.race is intended):
let cat3 = new Promise(resolve = >
setTimeout(resolve, 3000, " Cat 3 completes " )
);
Promise.race([cat1, cat2, cat3])
.then(value = > {
let result = `${value} the race.`;
})
.catch(err = > {
console.log( " Race is cancelled: " , err);
});
(Assuming cat1 and cat2 are similar to earlier examples: cat2 resolves fastest.) What is the value of result when Promise.race executes?

A. Race is cancelled.
B. Car 1 crashed on the race.
C. Car 3 completed the race.
D. Car 2 completed the race.

Answer: D

Explanation:
From earlier pattern (cars/cats race):
* One promise resolves the fastest with " Car 2 completed " (or analogous " Cat 2 completes " ).
* Promise.race resolves with the first settled promise's value.
* In .then, value is " Car 2 completed " and:
let result = `${value} the race.`;
// " Car 2 completed the race. "
Thus result is " Car 2 completed the race. " # option A.

NEW QUESTION # 65
A developer wants to define a function log to be used a few times on a single-file JavaScript script.
01 // Line 1 replacement
02 console.log('"LOG:', logInput);
03 }
Which two options can correctly replace line 01 and declare the function for use?
Choose 2 answers

A. function log = (logInput) {
B. function leg(logInput) {
C. const log = (logInput) => {
D. const log(loginInput) {

Answer: B,C

NEW QUESTION # 66
Refer to the code below:
Function Person(firstName, lastName, eyecolor) {
this.firstName =firstName;
this.lastName = lastName;
this.eyeColor = eyeColor;
}
Person.job = 'Developer';
const myFather = new Person('John', 'Doe');
console.log(myFather.job);
What is the output after the code executes?

A. Developer
B. Undefined
C. ReferenceError: assignment to undeclared variable "Person"
D. ReferenceError: eyeColor is not defined

Answer: B

NEW QUESTION # 67
......

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