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JavaScript Interview Questions and Answers
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Questions
JavaScript
0
votes
Q: What is a first class function in Javascript?
asked
Sep 26, 2023
in
JavaScript
by
AdilsonLima
javascript-interview-questions-answers
0
votes
Q: What are lambda or arrow functions?
asked
Sep 26, 2023
in
JavaScript
by
AdilsonLima
javascript-interview-questions-answers
0
votes
Q: What is the difference between == and === operators in Javascript?
asked
Sep 26, 2023
in
JavaScript
by
AdilsonLima
javascript-interview-questions-answers
0
votes
Q: How do you compare Object and Map?
asked
Sep 26, 2023
in
JavaScript
by
AdilsonLima
javascript-interview-questions-answers
0
votes
Q: What is the difference between slice and splice in Javascript?
asked
Sep 26, 2023
in
JavaScript
by
AdilsonLima
javascript-interview-questions-answers
0
votes
Q: What is the purpose of the array splice method?
asked
Sep 26, 2023
in
JavaScript
by
AdilsonLima
javascript-interview-questions-answers
0
votes
Q: What is the purpose of the array slice method in Javascript?
asked
Sep 26, 2023
in
JavaScript
by
AdilsonLima
javascript-interview-questions-answers
0
votes
Q: What is JSON and its common operations?
asked
Sep 26, 2023
in
JavaScript
by
AdilsonLima
javascript-interview-questions-answers
0
votes
Q: What is the difference between Call, Apply and Bind in Javascript?
asked
Sep 26, 2023
in
JavaScript
by
AdilsonLima
javascript-interview-questions-answers
0
votes
Q: What is a prototype chain in Javascript?
asked
Sep 26, 2023
in
JavaScript
by
AdilsonLima
javascript-interview-questions-answers
0
votes
Q: What are the possible ways to create objects in JavaScript?
asked
Sep 26, 2023
in
JavaScript
by
AdilsonLima
javascript-interview-questions-answers
0
votes
Q: Why is Graceful shutdown important?
asked
Jul 29, 2023
in
JavaScript
by
DavidAnderson
javascript-interview-questions-answers
0
votes
Q: What is Graceful shutdown in Nodejs?
asked
Jul 29, 2023
in
JavaScript
by
DavidAnderson
nodejs-interview-questions-answers
0
votes
Q: How can we add the middleware function using both methods, and with/without a route?
asked
Jul 29, 2023
in
JavaScript
by
DavidAnderson
javascript-interview-questions-answers
0
votes
Q: When you use app.use('/some_route', myCallBack())?
asked
Jul 29, 2023
in
JavaScript
by
DavidAnderson
javascript-interview-questions-answers
0
votes
Q: What are the differences between app.use() and app.get()?
asked
Jul 29, 2023
in
JavaScript
by
DavidAnderson
javascript-interview-questions-answers
0
votes
Q: What is the use of app.use() middleware in Express.JS?
asked
Jul 29, 2023
in
JavaScript
by
DavidAnderson
express
js-interview-questions-answers
0
votes
Q: How middleware works in Express.Js?
asked
Jul 29, 2023
in
JavaScript
by
DavidAnderson
express
js-interview-questions-answers
0
votes
Q: Explain about the Middleware in Express.Js?
asked
Jul 29, 2023
in
JavaScript
by
DavidAnderson
express-js-interview-questions-answers
0
votes
Q: When Node.js should not be used?
asked
Jul 29, 2023
in
JavaScript
by
DavidAnderson
javascript-questions-answers
0
votes
Q: Which of these keywords is used to define various functions in JavaScript?
asked
Dec 2, 2022
in
JavaScript
by
john ganales
javascript
0
votes
Q: Which of these codes is equivalent to the code given below?
asked
Dec 2, 2022
in
JavaScript
by
john ganales
javascript
0
votes
Q: A function’s execution would stop whenever a program control would encounter the _________ statement in the function’s body.
asked
Dec 2, 2022
in
JavaScript
by
john ganales
javascript
0
votes
Q: Which of these methods or operators are used for identifying an array?
asked
Dec 2, 2022
in
JavaScript
by
john ganales
operators
javascript
0
votes
Q: In the line of code given below, what will the “datatype” written in brackets be called?
asked
Dec 1, 2022
in
JavaScript
by
john ganales
javascript
0
votes
Q: Which of these symbols is used to create comments in JavaScript?
asked
Dec 1, 2022
in
JavaScript
by
john ganales
javascript
0
votes
Q: Which of these is not a keyword?
asked
Dec 1, 2022
in
JavaScript
by
john ganales
javascript
0
votes
Q: In case a value of an operator is NULL, then the unary operator would return the ____________ typeof.
asked
Dec 1, 2022
in
JavaScript
by
john ganales
javascript
0
votes
Q: Which of these is known as the Equality operator used for checking whether both the values are equal?
asked
Dec 1, 2022
in
JavaScript
by
john ganales
javascript
0
votes
Q: Which of these is a correct output for the JavaScript code given below?
asked
Dec 1, 2022
in
JavaScript
by
john ganales
javascript
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