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As Javascript development observed in nearly all organizations, Salesforce JavaScript-Developer-I is the most successful qualification candidates can get on their resume. Professionals have therefore been known to demonstrate concern. But this JavaScript-Developer-I can be very easy to clear if practitioners study with JavaScript-Developer-I exam dumps and then take the JavaScript-Developer-I practice exams. However, with accurate focusing and proper planning content, candidates will clear the test. With the aid of these materials, aspirants get reasonable idea about the kind of questions they pose in actual certification, the certification questions provides the most-represented JavaScript-Developer-I practice tests. The Salesforce experts check TestkingPass JavaScript-Developer-I dumps. Certification questions also include a test for practise and is an ideal forum for checking the information achieved.
Introduction to Salesforce JavaScript Developer I Exam
The credential Salesforce Accredited JavaScript Developer I is meant for applicants who build JavaScript applications for the web stack on the front-end and/or back-end.This validates both key JavaScript expertise and functional skills for applicants, for example, Lightning Components Platform, and Lightning Web Component technology relevant to JavaScript. Lightning web elements are personalised HTML elements that are designed with traditional HTML and modern JavaScript.
The Salesforce JavaScript Developer I certification requires two parts: the multiple-choice test given by the JavaScript Developer I and the Superbadge Lightning Web Components. In any order, all these credentials can be accessed. A Salesforce Certified Javascript Developer I certification is immediately obtained by adding these two certificates. The qualification applicant for Salesforce JavaScript Accredited Developer I will use the JavaScript language to build front-end or back-end software in one or more frameworks. The applicant will plan, build and evaluate effective , safe and reusable solutions.
The candidate can use JavaScript-specific programming style patterns and can use CSS , HTML, and other languages for integrating JavaScript. With Lightning Web Components, any JavaScript developer can build on Salesforce easily. This means that millions of JavaScript developers around the world will code on Salesforce without learning anything new. Developers can create and deploy brand-new fast apps on Salesforce using the current Lightning Platform development services portfolio and the modern JavaScript language. Salesforce JavaScript Developer I Certificate from Salesforce is designed to help Salesforce partners, customers and employees working on JavaScript as well as the Lightning Component Platform, know-how and knowledge and creation of Lightning web components (LWC’s).
NEW QUESTION 46
Refer to the code below:
What is the output after the ode executes successfully?
- A. End
Start
Success - B. Start
Success
End - C. Success
Start
End - D. Start
End
Success
Answer: B
NEW QUESTION 47
Refer to the following code:
What is returned by the function call on line 13?
- A. Null value
- B. Undefined
- C. Undefined value.
- D. Line 13 throws an error.
Answer: D
NEW QUESTION 48
Which code statement below correctly persists an objects in local Storage ?
- A. const setLocalStorage = (storageKey, jsObject) => {
window.localStorage.setItem(storageKey, JSON.stringify(jsObject));
} - B. const setLocalStorage = (storageKey, jsObject) => {
window.localStorage.persist(storageKey, jsObject);
} - C. const setLocalStorage = ( jsObject) => {
window.localStorage.setItem(jsObject);
} - D. const setLocalStorage = ( jsObject) => {
window.localStorage.connectObject(jsObject));
}
Answer: A
NEW QUESTION 49
A developer wrote the following code to test a sum3 function that takes in an array of numbers and returns the sum of the first three numbers in the array. The test passes:
A different developer made changes to the behavior of sum3 to instead sum all of the number present In the array.
Which two results occur when running the test on the updated sum3 function?
Choose 2 answers
- A. The line 02 assertion fails.
- B. The line 05 assertion fails.
- C. The line 05 assertion passes.
- D. The line 02 assertion passes.
Answer: B,D
NEW QUESTION 50
Refer to the following code:
What will the console when the button is clicked?
- A. Inner message
- B. Inner message
- C. Outer message
- D. Outer message
Answer: D
NEW QUESTION 51
Universal Containers recently its new landing page to host crowd-function 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 included the same ad-library-item class. They are hidden by default, and they are randomly displayed while the user navigation through the page.
Tired of all the ads, what can the developer do to temporarily and quickly remove them?
- A. Use the DOM inspector to remove all the elements containing the call ad-library -item.
- B. Use the browser console to execute a script that removes all the elements containing the class ad-library-item.
- C. Use the browser console to execute a script that prevents the load event to be fired.
- D. Use the DOM inspector to prevent the load event to be fired.
Answer: B
NEW QUESTION 52
Refer to the code below:
What is the result of running line 05?
- A. Neither aPromise or bPromise runs.
- B. Apromise and bpromise run in parallel.
- C. Only apromise runs.
- D. aPromise and bPromise run sequentially.
Answer: A
NEW QUESTION 53
Refer to the code below:
A developer uses a client that makes a GET request that uses a promise to handle the request, getRequest returns a promise.
Which code modification can the developer make to gracefully handle an error?
A)
B)
C)
D)
- A. Option C
- B. Option A
- C. Option B
- D. Option D
Answer: B
NEW QUESTION 54
Given the requirement to refactor the code above to JavaScript class format, which class definition is correct?
A)
B)
C)
D)
- A. Option C
- B. Option A
- C. Option B
- D. Option D
Answer: B
NEW QUESTION 55
A developer has code that calculates a restaurant bill, but generates incorrect answers while testing the code.
Which option allows the developer to step into each function execution within calculateBill?
- A. Calling the console. Trace( total ) method on line 03.
- B. Using the debugger command on line 03.
- C. Using the debugger command on line 05.
- D. Wrapping findsubtotal in a console .log method.
Answer: B
NEW QUESTION 56
Which JavaScript method can be used to serialize an object into a string and deserialize a JSON string into an object, respectively?
- A. JSON.encode and JSON decode
- B. JSON,serialize and JSON,desrialize
- C. JSON.Stringify and JSON.parse
- D. JSON.parse and JSON deserialize
Answer: B
NEW QUESTION 57
Which three statements are true about promises?
The executor of a new promise runs automatically.
- A. A pending promise can become fulfilled, settled or rejected.
- B. A settled promises can become resolved.
- C. A promise has a . then 90 method.
- D. A fulfilled or rejected promise will not change states.
Answer: B,C,D
NEW QUESTION 58
Refer to the HTML below:
Which expression outputs the screen width of the element with the ID card-01?
- A. Documents.getElementById( 'card-01') . width
- B. Documents.getElementById( 'card-01') .getBoundingClientRect () .width
- C. Documents.getElementById( 'card-01') . style,width
- D. Documents.getElementById( 'card-01') . InnerHTML. Length.6
Answer: B
NEW QUESTION 59
A developer creates a class that represents a blog post based on the requirements that a Post should have a body, author, and view count. The code is shown below:
Which statement should be inserted in the placeholder on line 02 to allow for a variable to be sent to a new instance of a port with the three attributes correctly populated?
- A. Function Post (body, author, viewCount) (
- B. Constructor (body, author, viewCount) (
- C. Super (body, author, viewCount) (
- D. Constructor ( ) (
Answer: B
NEW QUESTION 60
Refer to the code below:
Line 05 causes an error.
What are the values of greeting and salutation once code completes?
- A. Greeting is Hello and salutation is Hello, Hello.
- B. Greeting is Goodbye and salutation is I say Hello.
- C. Greeting is Hello and salutation is I say hello.
- D. Greeting is Goodbye and salutation is Hello, Hello.
Answer: A
NEW QUESTION 61
Considering type coercion, What does the following expression evaluate to?
True + '13 ' + NaN
- A. 'true13'
- B. 113NaN
- C. 'true13NaN'
- D. 0
Answer: B
NEW QUESTION 62
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 browser to execute a script that removes all the element containing the class ad-library-item.
- B. Use the DOM inspector to remove all the elements containing the class ad-library-item.
- C. Use the browser console to execute a script that prevents the load event to be fired.
- D. Use the DOM inspector to prevent the load event to be fired.
Answer: A
NEW QUESTION 63
A developer wants to create an object from a function in the browser using the code below.
What happens due to lack of the new keyword on line 02?
- A. The n variable is assigned the correct object but this- remains undefined.
- B. The a variable is assigned the correct object.
- C. Window. n is assigned the correct object.
- D. Window. === name is assigned to ''hello'' and the variable a n remain undefined.
Answer: D
NEW QUESTION 64
......
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