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Welcome to download the newest DumpsTests JavaScript-Developer-I PDF dumps: https://www.dumpstests.com/JavaScript-Developer-I-latest-test-dumps.html ( 160 Q&As)
NEW QUESTION 84
Refer to the code below:
Which two statements correctly execute the runparallel () function?
Choose 2 answers
- A. runParallel () , then (function ) (date) { } 0;
- B. runParallel () , done (function ( data)(return data; }};
- C. runParralel () . then (data );
- D. Async runParalled (). Then (data) :
Answer: A,D
NEW QUESTION 85
A developer wants to literate through an array of objects and count the objects whose property value, name, start with the letter N. const arrobj - [{''name ''t ''Zach''}, { ''name t Kate'') , ( ''name Alice'') < ( ''name'' t ''Bob'') , (''name'' t ''Nathan) , (''name'' t ''Nathandle1'')] Refer to the code snippet below:
Which missing lines 02 and 03 return the correct count?
- A. Conset sun + curr. StartsWith ('N') 7 1 : 1;
Return acc + sum ; - B. Const sum = curr. name startsWith ('N') 7 1 : 0;
Return curr + sum; - C. Comst sum = curr. name startsWith ('N') 7 1 : 0;
Return curr + sum; - D. Comst sum = curr. Name startsWith ('N') 7 1 : 0
Return acc + sum;
Answer: D
NEW QUESTION 86
Given the code below:
What is the expected output?
- A. Both lines 06 and 09 are executed, but the values outputted are undefined.
- B. Line 08 outputs the variable, but line 09 throws an error.
- C. Both lines 08 and 09 are executed, and the variables are outputted.
- D. Line 08 throws an error, therefore line 09 is never executed.
Answer: B
NEW QUESTION 87
Refer to the code below:
Line 05 causes an error.
What are the values of greeting and salutation once code completes?
- A. Greeting is Goodbye and salutation is I say Hello.
- B. Greeting is Goodbye and salutation is Hello, Hello.
- C. Greeting is Hello and salutation is Hello, Hello.
- D. Greeting is Hello and salutation is I say hello.
Answer: C
NEW QUESTION 88
Refer to the code below:
Why does the function bar have access to variable =?
- A. Prototype chain
- B. Outer function's scope
- C. Hoisting
- D. Inner function's scope
Answer: D
NEW QUESTION 89
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 immutable.
- B. Primitive values are immutable
- C. Primitive values are mutable.
- D. Non-primitive values are mutable.
Answer: D
NEW QUESTION 90
Refer to the code:
Given the code above, which three properties are set pet1?
Choose 3 answers:
- A. Name
- B. Size
- C. Type
- D. canTalk
- E. Owner
Answer: B,C,D
NEW QUESTION 91
A developer has a server running with Node.js. the command to start the web server is node server.js. the server started having latency issues. Instead of a one second turnaround for web requests, the developer now sees a five second turnaround.
Which command can the web developer run to see what the module is doing during the latency period?
- A. NODE_DEBUO=true node server,js
- B. DEBUO=true node server,js
- C. DEBUO=http, https node server,js
- D. NODE_DEBUO=http, https node server,js
Answer: C
NEW QUESTION 92
Which two code snippets show working examples of a recursive function?
Choose 2 answers
A)
B)
C)
D)
- A. Option C
- B. Option A
- C. Option D
- D. Option B
Answer: A,C
NEW QUESTION 93
A developer writes the code below to calculate the factorial of a given number.
What is the result of executing line 04?
- A. -Infinity
- B. RuntimeError
- C. 0
- D. 1
Answer: B
NEW QUESTION 94
Given the code below:
Which method can be provide a visual representation of the list if users and to allow sorting by the name or email attributes.
- A. Console.group (userList);
- B. Console.groupCollapsed (userslist);
- C. Console.info (userlist);
- D. Console,table (userslist);
Answer: A
NEW QUESTION 95
The developer has a function that prints "Hello" to an input name. To test this, thedeveloper created a function that returns "World". However the following snippet does not print " Hello World".
What can the developer do to change the code to print "Hello World" ?
- A. Change line 9 to sayHello(world) ();
- B. Change line 7 to ) () ;
- C. Change line 2 to console.log('Hello' , name() );
- D. Change line 5 to function world ( ) {
Answer: C
NEW QUESTION 96
Refer to the code below:
What are the value of objBook and newObBook respectively?
- A. ( Title: JavaScript'')
( Title: JavaScript'') - B. (author: ''Robert'' )
(Author: ''Robert '', title: JavaScript'') - C. author: ''Robert title ''javaScript'' ) undefined
- D. ( author: ''Robert'', title JavaScript'' )
( author: ''Robert'', title JavaScript'' )
Answer: C
NEW QUESTION 97
Refer to the code below:
Const searchTest = 'Yay! Salesforce is amazing!" ;
Let result1 = searchText.search(/sales/i);
Let result 21 = searchText.search(/sales/i);
console.log(result1);
console.log(result2);
After running this code, which result is displayed on the console?
- A. > 5 >undefined
- B. > 5 > -1
- C. > true > false
- D. > 5 > 0
Answer: A
Explanation:
NEW QUESTION 98
Refer to the code below:
Which code change should be made for the console to log only Row log when 'Click mel' is clicking?
- A. Add event,stopPropagation (); to window,onLoad event hadler.
- B. Add event,stopPropagation (); to printMessage function.
- C. Add event,stopPropagation (); to window.onLoad event hadler.
- D. Add event,stopPropagation (); to printMessage function.
Answer: C,D
NEW QUESTION 99
A team that works on a big project uses npm to deal with the project's dependencies.
A developer added a dependency to manipulated dates and pushed the updates to the remote repository. The rest of the team complains that the dependency does not get download when they execute npm install.
Which two reason could be possible explanation for this?
- A. The developer added the dependency as a dev dependency, and NOOK_ENV is set to production.
- B. The developer added the dependency as a dev dependency, and NODK_ENV is set to production.
- C. The developer missed the option -ssve when adding the dependency.
- D. The developer missed the option - add when adding the dependency.
Answer: A,B,C
NEW QUESTION 100
A class was written to represent items for purchase in an online store, and a second class representing items that are on sale at a discounted price. The constructor sets the name to the first value passed in. The pseudocode is below:
There is a new requirement for a developer to implement a description method that will retrun a brief description for item and saleitem.
What is the out when executing the code above?
- A. This is a Scaf
Uncaught TypeError: saleItem, description is not a function
This is a Shirt
This is a discounted Shirt - B. This is a Scarf
This is a Shirt
This is a Scarf
This is a discounted Shirt - C. This is a Scarf
This is a Shirt
This is a discounted Scard
This is a discounted Shirt - D. This is a Scarf
Unicaught TypeError: saleitem, description is not a function
This is a Scarf
This is a discounted Shirt
Answer: B
NEW QUESTION 101
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 browser console to execute a script that prevents the load event to be fired.
- C. Use the browser to execute a script that removes all the element containing the class ad-library-item.
- D. Use the DOM inspector to remove all the elements containing the class ad-library-item.
Answer: C
NEW QUESTION 102
Refer to the code below:
What is the value of foobDienu1 after the code executes?
- A. {'Garlic bread'}
- B. {'Garlic bread', Pizza' , Burger' , French fries'}
- C. {'Pizza' , Burger' , French fries '}
- D. {'Pizza' , Burger' , French fries ' , garlic bread; }
Answer: D
NEW QUESTION 103
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