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Salesforce JavaScript-Developer-I exam is designed to test your knowledge and expertise in developing custom applications using JavaScript in the Salesforce platform. Salesforce Certified JavaScript Developer (JS-Dev-101) certification is intended for developers who have experience in developing applications using JavaScript and want to validate their skills in the Salesforce environment. JavaScript-Developer-I exam covers a range of topics such as Apex, Visualforce, Lightning Components, and other technologies that are commonly used in Salesforce development.

Preparing for the Salesforce JavaScript-Developer-I Certification Exam requires a deep understanding of the topics covered in the exam. Salesforce provides a variety of study materials including online courses, trailhead modules, and documentation. Additionally, there are many third-party resources available to help you prepare for the exam including study guides, practice exams, and training courses.

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Reliable JavaScript-Developer-I Dumps Questions, JavaScript-Developer-I Reliable Exam Practice

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Salesforce JavaScript-Developer-I Exam has been designed by experts in the field to ensure that candidates have the knowledge and skills necessary to develop high-quality applications on the Salesforce platform. JavaScript-Developer-I exam includes a variety of topics, including designing and implementing solutions that use Apex and Visualforce, querying and manipulating data, and developing custom Lightning components. It also covers topics such as security, integration, and deployment.

Salesforce Certified JavaScript Developer (JS-Dev-101) Sample Questions (Q91-Q96):

NEW QUESTION # 91
A developer has an isDeg function that takes one argument, pts. They want to schedule the function to run every minute.
What is the correct syntax for scheduling this function?

A. setInterval(isDeg( ' cat ' ), 60000);
B. setTimeout(isDeg( ' cat ' ), 60000);
C. setInterval(isDeg, 60000, ' cat ' );
D. setTimeout(isDeg, 60000, ' cat ' );

Answer: C

Explanation:
* setInterval(fn, delay, arg1, arg2, ...) calls fn every delay ms, passing extra arguments.
* To call isDeg every 60 seconds with " cat " :
setInterval(isDeg, 60000, ' cat ' );
Why others are wrong:
* A/D: isDeg( ' cat ' ) is called immediately, and its return value is scheduled, not the function.
* C: setTimeout runs once after 60 seconds, not repeatedly.

NEW QUESTION # 92
Refer to the following code:

What is returned by the function call on line 13?

A. Undefined value.
B. Undefined
C. Null value
D. Line 13 throws an error.

Answer: D

NEW QUESTION # 93
Corrected code:
function Person() {
this.firstName = " John " ;
}
Person.prototype = {
job: x = > " Developer "
};
const myFather = new Person();
const result = myFather.firstName + " " + myFather.job();
What is the value of result after line 10 executes?

A. " undefined Developer "
B. " John Developer "
C. " John undefined "
D. Error: myFather.job is not a function

Answer: B

Explanation:
The verified answer is A .
This constructor function runs when new Person() is called:
function Person() {
this.firstName = " John " ;
}
So this line:
const myFather = new Person();
creates an object like this:
{
firstName: " John "
}
Then the prototype is assigned a method named job:
Person.prototype = {
job: x = > " Developer "
};
Because myFather is created from Person, it can access properties and methods from Person.prototype.
So:
myFather.firstName
returns:
" John "
And:
myFather.job()
returns:
" Developer "
Therefore:
const result = myFather.firstName + " " + myFather.job();
becomes:
const result = " John " + " " + " Developer " ;
Final value:
" John Developer "
Option B is incorrect because job() returns " Developer " , not undefined.
Option C is incorrect because job exists on Person.prototype, so it is callable.
Option D is incorrect because firstName is assigned inside the constructor.
Therefore, the verified answer is A .

NEW QUESTION # 94
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 module, exports and require them as needed.
C. Use the document instead of the window object.
D. Assign variables to the global object.

Answer: A,C

NEW QUESTION # 95
A developer at Universal Container creates a new landing page based on HTML, CSS, and JavaScript.
To ensure that visitors have a good experience, a script named personalizeewebsiteCotent needs to be executed when the webpage is fully loaded (HTML content and all related files), in order to do some custom initialization.
Which statement should be used to call personalizeWebsiteContent based on the above business requirement?

A. Window, addEventListener('onload', personalizewebsiteContent);
B. Document,addEventListener ('DCMContentLoaded' , personalizeWebsiteContent);
C. Window, addEventListener('load', personalizewebsiteContent);
D. Document, addEventListener ('oDCMContentLoaded' , personalizewensiteContent);

Answer: C

NEW QUESTION # 96
......

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