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100% JavaScript-Developer-I Correct Answers | JavaScript-Developer-I Dumps

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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.

To become a Salesforce Certified JavaScript Developer I, candidates must pass the JavaScript-Developer-I Exam. JavaScript-Developer-I exam consists of 60 multiple-choice questions that must be completed within 105 minutes. JavaScript-Developer-I exam is designed to test a candidate's knowledge of JavaScript development on the Salesforce platform, as well as their ability to design, develop, and maintain custom applications. Candidates must achieve a passing score of 68% or higher to earn the certification. Once certified, developers will have demonstrated their expertise in JavaScript development on the Salesforce platform, making them more valuable to potential employers and clients.

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Salesforce Certified JavaScript Developer I Exam Sample Questions (Q43-Q48):

NEW QUESTION # 43
Refer to the expression below:
Let x = ('1' + 2) == (6 + 2) ;
How should this expression be modified to ensure that a evaluated to false?

A. Let x = (1' + '2') == (6 + 2) ;
B. Let x = (1' + '2') == ('6' / 2) ;
C. Let x = (1' + '2') === (6 + 2) ;
D. Let x = (1' + '2') === (6 / 2) ;

Answer: C

NEW QUESTION # 44
A developer is wondering whether to use, Promise.then or Promise.catch, especially
when a Promise throws an error?
Which two promises are rejected?
Which 2 are correct?

A. Promise.reject('cool error here').then(error => console.error(error));
B. New Promise(() => (throw 'cool error here'}).then(null, error => console.error(error)));
C. Promise.reject('cool error here').catch(error => console.error(error));
D. New Promise((resolve, reject) => (throw 'cool error here'}).catch(error =>
console.error(error)) ;

Answer: C,D

NEW QUESTION # 45
A developer is leading the creation of a new web server for their team that will fulfill API requests from an existing client.
The team wants a web server that runs on Node.Js, and they want to use the new web framework Minimalist.Js. The lead developer wants to advocate for a more seasoned back-end framework that already has a community around it.
Which two frameworks could the lead developer advocate for?
Choose 2 answers

A. Koa
B. Gatsby
C. Express
D. Angular

Answer: B,D

NEW QUESTION # 46
Refer to the following code:
function test (val) {
If (val === undefined) {
return 'Undefined values!' ;
}
if (val === null) {
return 'Null value! ';
}
return val;
}
Let x;
test(x);
What is returned by the function call on line 13?

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

Answer: C

NEW QUESTION # 47
Given the expressions var1 and var2, what are two valid ways to return the concatenation of the two expressions and ensure it is string? Choose 2 answers

A. String (var1) .concat (var2)
B. var1.toString ( ) var2.toString ( )
C. string.concat (var1 +var2)
D. var1 + var2

Answer: B,C

NEW QUESTION # 48
......

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