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Salesforce Certified JavaScript Developer I exam is a multiple-choice exam that consists of 60 questions. The time allotted for JavaScript-Developer-I exam is 105 minutes, and a passing score of 68% is required. JavaScript-Developer-I exam fee is $200, and it can be taken online or at a testing center.
The benefits of passing the Salesforce JavaScript-Developer-I exam are numerous. First and foremost, it demonstrates that the individual has a deep understanding of the Salesforce platform and can develop custom applications using JavaScript. Salesforce Certified JavaScript Developer I Exam certification can also lead to career advancement opportunities and increased earning potential. Additionally, it provides access to a community of certified professionals who can provide support and guidance in the field.
NEW QUESTION # 40
Which code statement correctly retrieves and return an object from localStorage?
A)
B)
C)
D)
- A. Option B
- B. Option D
- C. Option C
- D. Option A
Answer: B
NEW QUESTION # 41
Teams at Universal Containers (UC) work on multiple JavaScript projects at the same time.
UC is thinking about reusability and how each team can benefit from the work of others.
Going open-source or public is not an option at this time.
Which option is available to UC with npm?
- A. Private registries are not supported by npm, but packages can be installed via git.
- B. Private packages can be scored, and scopes can be associated to a private registries.
- C. Private packages are not supported, but they can use another package manager like yarn.
- D. Private registries are not supported by npm, but packages can be installed via URL.
Answer: B
NEW QUESTION # 42
A developer wrote the following code:
01 let X = object.value;
02
03 try {
04 handleObjectValue(X);
05 } catch (error) {
06 handleError(error);
07 }
The developer has a getNextValue function to execute after handleObjectValue(), but
does not want to execute getNextValue() if an error occurs.
How can the developer change the code to ensure this behavior?
- A. 03 try{
04 handleObjectValue(x);
05 } catch(error){
06 handleError(error);
07 } then {
08 getNextValue();
09 } - B. 03 try {
04 handleObjectValue(x)
05 ........................ - C. 03 try{
04 handleObjectValue(x);
05 } catch(error){
06 handleError(error);
07 }
08 getNextValue(); - D. 03 try{
04 handleObjectValue(x);
05 } catch(error){
06 handleError(error);
07 } finally {
08 getNextValue();
10 }
Answer: B
NEW QUESTION # 43
Refer to the code below:
What is the value of result after the code executes?
- A. 0
- B. undefined
- C. 1
- D. NaN
Answer: C
NEW QUESTION # 44
Given the JavaScript below:
Which code should replace the placeholder comment on line 05 to highlight accounts that match the search string'
- A. null : 'yellow'
- B. 'yellow : 'none'
- C. 'yellow' : null
- D. 'none1 : "yellow'
Answer: B
NEW QUESTION # 45
Refer to the code below:
const car = {
price:100,
getPrice:function(){
return this.price;
}
};
const customCar = Object.create(car);
customCar.price = 70;
delete customCar.price;const result = customCar.getPrice();
What is the value of result after the code executes?
- A. 0
- B. undefined
- C. null
- D. 1
Answer: A
NEW QUESTION # 46
Refer to code below:
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 the result after line 10 executes?
- A. John Developer
- B. Error: myFather.job is not a function
- C. John undefined
- D. Undefined Developer
Answer: A
NEW QUESTION # 47
A developer is leading the creation of a new browser application that will serve a single page application. The team wants to use a new web framework Minimalsit.js. The Lead developer wants to advocate for a more seasoned web framework that already has a community around it.
Which two frameworks should the lead developer advocate for?
Choose 2 answers
- A. Koa
- B. Express
- C. Vue
- D. Angular
Answer: B,D
NEW QUESTION # 48
Refer to the followingcode:
- A. Inner message
Outer message - B. Outer message
Inner message - C. Button message
- D. Outer message
Answer: C
NEW QUESTION # 49
bar, awesome is a popular JavaScript module. the versions publish to npm are:
Teams at Universal Containers use this module in a number of projects. A particular project has thepackage, json definition below.
A developer runs this command: npm install.
Which version of bar .awesome is installed?
- A. 1.3.1
- B. The command fails, because version 130 is not found
- C. 1.3.5
- D. 1.4.0
Answer: C
NEW QUESTION # 50
Refer to the following code:
Which two statements could be inserted at line 17 to enable the function call on line 18?
Choose 2 answers
- A. Object.assign, assign( 1eo, trigger);
- B. Object,assign(1eo, tony) ;
- C. 1eo.roar = () => 9 (console.log('They\'re pretty good1'); 1;
- D. 1eo.prototype.roar = ( ) => ( console.log (They\'re pretty good1'); );
Answer: B,C
NEW QUESTION # 51
A developer receives a comment from the Tech Lead that the code given below has
error:
const monthName = 'July';
const year = 2019;
if(year === 2019) {
monthName = 'June';
}
Which line edit should be made to make this code run?
- A. 03 if (year == 2019) {
- B. 02 let year =2019;
- C. 01 let monthName ='July';
- D. 02 const year = 2020;
Answer: C
NEW QUESTION # 52
Refer to the code:
Given the code above, which three properties are set pet1?
Choose 3 answers:
- A. Size
- B. Name
- C. Type
- D. canTalk
- E. Owner
Answer: A,C,D
NEW QUESTION # 53
Refer to the code:
Given the code above, which three properties are set pet1?
Choose 3 answers:
- A. Size
- B. Name
- C. Type
- D. canTalk
- E. Owner
Answer: A,C,D
NEW QUESTION # 54
Which two code snippets show working examples of a recursive function?
Choose 2 answers
A)
B)
C)
D)
- A. Option B
- B. Option D
- C. Option A
- D. Option C
Answer: B,D
NEW QUESTION # 55
Which three actions can be using the JavaScript browser console?
Choose 3 answers:
- A. view , change, and debug the JavaScript code of the page.
- B. View and change security cookies.
- C. Display a report showing the performance of a page.
- D. View and change DOM the page.
- E. Run code that is not related to page.
Answer: A,D,E
NEW QUESTION # 56
Universal Containers recently launched its new landing page to host a crowd-funding campaign. The page uses an external library to display some third-party ads. Once the page is fully loaded, it creates more than 50 new HTML items placed randomly inside the DOM, like the one in the code below:
All the elements includes the same ad-library-item class, They are hidden by default, and they are randomly displayed while the user navigates through the page.
- A. Use the DOM inspector to prevent the load event to be fired.
- B. Use the DOM inspector to remove all the elements containing the class ad-library-item.
- C. Use the browser to execute a script that removes all the element containing the class ad-library-item.
- D. Use the browser console to execute a script that prevents the load event to be fired.
Answer: C
NEW QUESTION # 57
......
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