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Salesforce JavaScript-Developer-I (Salesforce Certified JavaScript Developer I) Exam is designed for professionals who aim to become certified Salesforce Developers. JavaScript-Developer-I exam is intended to test the candidate's knowledge and skills in developing custom applications on the Salesforce platform using JavaScript. JavaScript-Developer-I Exam is based on the Salesforce Certified JavaScript Developer I Certification program, which validates the candidate's proficiency in developing applications using JavaScript.

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Salesforce Certified JavaScript Developer I Exam Sample Questions (Q24-Q29):

NEW QUESTION # 24
Refer to the code below.

After changing the string index values, the of atr is Javascript''. What is the reason for this value?

A. Non-primitive values are mutable.
B. Non-primitive values are immutable.
C. Primitive values are immutable
D. Primitive values are mutable.

Answer: A

NEW QUESTION # 25
Given the following code:
Counter = 0;
const logCounter = () => {
console.log(counter);
);
logCounter();
setTimeout(logCOunter, 1100);
setInterval(() => {
Counter++
logCounter();
}, 1000);
What is logged by the first four log statements?

A. 0 0 1 2
B. 0 1 2 2
C. 0 1 1 2
D. 0 1 2 3

Answer: C

NEW QUESTION # 26
Why would a developer specify a package.jason as a developed forge instead of a dependency ?

A. It is only needed for local development and testing.
B. Other required packages depend on it for development.
C. It should be bundled when the package is published.
D. It is required by the application in production.

Answer: A

NEW QUESTION # 27
A developer is asked to fix some bugs reported by users. To do that, the developer adds
a breakpoint for debugging.
Function Car (maxSpeed, color){
This.maxspeed =masSpeed;
This.color = color;
Let carSpeed = document.getElementById(' CarSpeed');
Debugger;
Let fourWheels =new Car (carSpeed.value, 'red');
When the code execution stops at the breakpoint on line 06, which two types of information are
available in the browser console ?
Choose 2 answers:

A. The information stored in the window.localStorage property
B. A variable displaying the number of instances created for the Car Object.
C. The values of the carSpeed and fourWheels variables
D. The style, event listeners and other attributes applied to the carSpeed DOM element

Answer: A,D

NEW QUESTION # 28
Which javascript methods can be used to serialize an object into a string and deserialize
a JSON string into an object, respectively?

A. JSON.parse and JSON.deserialize
B. JSON.stringify and JSON.parse
C. JSON.serialize and JSON.deserialize
D. JSON.encode and JSON.decode

Answer: B

NEW QUESTION # 29
......

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