Write an function to count the frequency of element in an array

Write an program to check a string is an anagram or not in JavaScript

Write a program to remove duplicate elements from the string

How to reverse a string in JavaScript

Write a program to merge two strings and sort the final string

Write a program to count maximum consecutive numbers from an array

How to Flatten an Array in JavaScript

Write a program to find the Nth maximum value in an array

Solve the problem using spread operator

Write an function to sum the array of array in JavaScript

Array sorting in JavaScript