Salesforce JavaScript-Developer-I Real Exam Questions and Answers FREE
Exam Dumps JavaScript-Developer-I Practice Free Latest Salesforce Practice Tests
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.
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.
NEW QUESTION # 67
Refer to the code snippet:
Function getAvailabilityMessage(item) {
If (getAvailability(item)){
Var msg ="Username available";
}
Return msg;
}
A developer writes this code to return a message to user attempting to register a new username. If the username is available, variable.
What is the return value of msg hen getAvailabilityMessage ("newUserName" ) is executed and getAvailability("newUserName") returns false?
- A. "Msg is not defined"
- B. "Username available"
- C. undefined
- D. "newUserName"
Answer: C
NEW QUESTION # 68
At Universal Containers, every team has its own way of copying JavaScript objects. The
code
Snippet shows an implementation from one team:
Function Person() {
this.firstName = "John";
this.lastName = 'Doe';
This.name =() => (
console.log('Hello $(this.firstName) $(this.firstName)');
)}
Const john = new Person ();
Const dan = JSON.parse(JSON.stringify(john));
dan.firstName ='Dan';
dan.name();
What is the Output of the code execution?
- A. Hello Dan Doe
- B. TypeError: Assignment to constant variable.
- C. Hello John DOe
- D. TypeError: dan.name is not a function
Answer: D
NEW QUESTION # 69
A developer is setting up a Node,js server and is creating a script at the root of the source code, index,js, that will start the server when executed. The developer declares a variable that needs the folder location that the code executes from.
Which global variable can be used in the script?
- A. _filename
- B. this.path
- C. window.location
- D. _dirname
Answer: A
NEW QUESTION # 70
A developer initiates a server with the file server,js and adds dependencies in the source codes package,json that are required to run the server.
Which command should the developer run to start the server locally?
- A. node start
- B. npm start
- C. start server,js
- D. npm start server,js
Answer: B
NEW QUESTION # 71
A developer implements and calls the following code when an application state change occurs:
If the back button is clicked after this method is executed, what can a developer expect?
- A. A popstate event is fired with a state properly that details the application's last state.
- B. The page reloads and all JavaScript is reinitialized.
- C. A navigate event is fired with a state properly that details previous application state.
- D. The page is navigated away from and previous page in the browser's history is loaded.
Answer: D
NEW QUESTION # 72
Refer to the code below:
Function changeValue(obj) {
Obj.value = obj.value/2;
}
Const objA = (value: 10);
Const objB = objA;
changeValue(objB);
Const result = objA.value;
What is the value of result after the code executes?
- A. Nan
- B. 0
- C. Undefined
- D. 1
Answer: B
NEW QUESTION # 73
Refer to the code below:
Let textvalue = '1984';
Which code segment shows a correct way to convert this string to an integer?
- A. Let numberValue = Integer ( textValue );
- B. Let numberValue = (Number) textvalue;
- C. Let numberValue = Number(textvalue);
- D. Let numberValue = textValue. Tointeger ( ) ;
Answer: C
NEW QUESTION # 74
Given the requirement to refactor the code above to JavaScript class format, which class definition is correct?
A)
B)
C)
D)
- A. Option A
- B. Option C
- C. Option D
- D. Option B
Answer: A
NEW QUESTION # 75
A developer at Universal Containers creates a new landing page based on HTML, CSS, and JavaScript TO ensure that visitors have a good experience, a script named personaliseContext 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. Document.addEventListener('''DOMContextLoaded' , personalizeWebsiteContext);
- B. window.addEventListener('load',personalizeWebsiteContext);
- C. window.addEventListener('onload', personalizeWebsiteContext);
- D. document.addEventListener(''onDOMContextLoaded', personalizeWebsiteContext);
Answer: B
NEW QUESTION # 76
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 number in the array, The test passes:
Let res = sum2([1, 2, 3 ]) ;
console.assert(res === 6 );
Res = sum3([ 1, 2, 3, 4]);
console.assert(res=== 6);
A different developer made changes to the behavior of sum3 to instead sum all of the numbers present in the array. The test passes:
Which two results occur when running the test on the updated sum3 function ?
Choose 2 answers
- A. The line 02 assertion passes.
- B. The line 05 assertion passes.
- C. The line 02 assertion fails
- D. The line 05 assertion fails.
Answer: A,D
NEW QUESTION # 77
Refer to the following code block:
What is the console output?
- A. > Uncaught Reference Error
- B. > Better student Jackie got 70% on test.
- C. > Jackie got 70% on test.
- D. > Better student Jackie got 100% on test.
Answer: B
NEW QUESTION # 78
Refer to the code below:
What value can a developer expect when referencing o,js,secondCity?
- A. 'new york'
- B. 'New York
- C. An error
- D. Undefined
Answer: A
NEW QUESTION # 79
Refer to the code below:
const addBy = ?
const addByEight =addBy(8);
const sum = addBYEight(50);
Which two functions can replace line 01 and return 58 to sum?
Choose 2 answers
- A. const addBy = (num1) => num1 + num2 ;
- B. const addBy = function(num1){
return function(num2){
return num1 + num2;
} - C. const addBy = function(num1){
return num1 + num2;
} - D. const addBY = (num1) => (num2) => num1 + num2;
Answer: B,D
NEW QUESTION # 80
Refer to the code below:
Let searchString = ' Look for this ';
Which two options remove the whitespace from the beginning of searchString? Choose 2 answers
- A. searchString. trimEnd ( ) ;
- B. trimStart (searchString) ;
- C. searchString. trimstart ( ) ;
- D. searchString. Replace (/^\a\a'/' ' ') ;
Answer: C,D
NEW QUESTION # 81
Refer to the code below:
What is displayed when myfunction(true) is called?
- A. 2 2 2 2
- B. 2 2 1 2
- C. 2 2 undefined undefined
- D. 2 2 1 1
Answer: D
NEW QUESTION # 82
Given the HTML below:
Which statement adds the priority-account CSS class to the Universal Containers row?
- A. document. querySelector (#row-uc'). classes-push('priority-account');
- B. document. querySelectorAll('#row-uc') -classList.add("priority-accour');
- C. document. queryselector('#row-uc').ClassList.add('priority-account');
- D. document. getElementByid('row-uc').addClass('priority-account*);
Answer: C
NEW QUESTION # 83
......
The Salesforce JavaScript-Developer-I exam covers a range of topics related to JavaScript development on the Salesforce platform. These include data modeling, user interface development, Apex programming, and integration with external systems. JavaScript-Developer-I exam is designed to test the candidate's knowledge of best practices and patterns for application development on the Salesforce platform.
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JavaScript-Developer-I Exam Questions | Real JavaScript-Developer-I Practice Dumps: https://drive.google.com/open?id=12c2lxq-sPpZcz-03LSMLs5WTRlpG4j57
