Question

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 order The question was asked in an online interview. My question is taken from Array and Related Methods topic in division Lexical Structures of JavaScript Select the correct answer from above options JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

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.