What will happen if reverse() and join() methods are used simultaneously?(a) Reverses and stores in the same array(b) Reverses and concatenates the elements of the array(c) Reverses(d) Stores the elements of an array in normal orderThe question was asked in an online interview.My question is taken from Array and Related Methods topic in division Lexical Structures of JavaScript

What will happen if reverse() and join() methods are used simultaneous

1.	What will happen if reverse() and join() methods are used simultaneously?(a) Reverses and stores in the same array(b) Reverses and concatenates the elements of the array(c) Reverses(d) Stores the elements of an array in normal orderThe question was asked in an online interview.My question is taken from Array and Related Methods topic in division Lexical Structures of JavaScript
Answer» Correct OPTION is (a) Reverses and STORES in the same array Easiest explanation: The array.join() METHOD is an inbuilt function in JavaScript which is USED to join the elements of an array into a string. The reverse() followed by a join() will reverse the respective array and will store the REVERSED array in the memory.

Discussion

No Comment Found

Related InterviewSolutions

What is the purpose of the dynamic scoping?(a) Variables can be declared outside the scope(b) Variables must be declared outside the scope(c) Variables cannot be declared outside the scope(d) Variable cannot be declared within the functionThis question was addressed to me during an online exam.Asked question is from Closures in section Lexical Structures of JavaScript
What is the opposite approach to the lexical scoping?(a) Literal scoping(b) Static scoping(c) Dynamic scoping(d) Generic scopingThis question was posed to me in a job interview.Origin of the question is Closures topic in division Lexical Structures of JavaScript
What is the fundamental rule of lexical scoping?(a) Functions are declared in the scope(b) Functions are executed using scope chain(c) Functions are declared outside the scope(d) Variables are declared within the functionI have been asked this question during a job interview.I'd like to ask this question from Closures in portion Lexical Structures of JavaScript
Which of the following uses a lot of CPU cycles?(a) GUI(b) Statically generated graphics(c) Dynamically generated graphics(d) Generic scopingThe question was posed to me in a job interview.I would like to ask this question from Closures in section Lexical Structures of JavaScript
Which of the following is not an example of closures?(a) Objects(b) Variables(c) Functions(d) GraphicsI got this question in homework.This interesting question is from Closures topic in portion Lexical Structures of JavaScript
What is closure?(a) Function objects(b) Scope where function’s variables are resolved(c) Both Function objects and Scope where function’s variables are resolved(d) Function return valueThe question was posed to me in an interview for internship.This intriguing question originated from Closures topic in portion Lexical Structures of JavaScript
What must be done in order to implement Lexical Scoping?(a) Get the object(b) Dereference the current scope chain(c) Reference the current scope chain(d) Return the valueThe question was posed to me during an interview.Enquiry is from Closures topic in section Lexical Structures of JavaScript
What kind of scoping does JavaScript use?(a) Literal(b) Lexical(c) Segmental(d) SequentialI had been asked this question in quiz.I'd like to ask this question from Closures in section Lexical Structures of JavaScript
A function with no return value is called ___________(a) Procedures(b) Method(c) Static function(d) Dynamic functionI have been asked this question in a job interview.Origin of the question is Defining and Invoking Functions in portion Lexical Structures of JavaScript
Which keyword is used to define the function in javascript?(a) void(b) int(c) function(d) mainI got this question during an internship interview.This key question is from Defining and Invoking Functions topic in chapter Lexical Structures of JavaScript

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment