We are required to write a JavaScript function that takes in an array of Number / String literals and returns another array of arrays. With each subarray containing exactly two elements, the nth element from start nth from last.For example: If the array is −const arr = [1, 2, 3, ... Read More

We are required to write a JavaScript function that takes in an array that contains elements of different data types and the function should return a map representing the frequency of each data type.Let’s say the following is our array −const arr = [23, 'df', undefined, null, 12, {   ... Read More

We are required to write a JavaScript function that takes in two arrays of numbers. And the function should return true if the two arrays upon combining and shuffling can form a consecutive sequence, false otherwise.For example: If the arrays are −const arr1 = [4, 6, 2, 9, 3]; const ... Read More

We are required to write a JavaScript function that takes in a string sentence as first and the only argument. And the function should return the length of the second smallest word from the string.For example: If the string is −const str = 'This is a sample string';Then the output ... Read More

We are required to write a JavaScript function that takes in a string as the first argument, a number, say n, as the second argument and a character, say c, as the third argument. The function should replace the nth appearance of any character with the character provided as the ... Read More

We are required to write a JavaScript function that takes in an array of numbers and returns a subarray that contains all the element from the original array that are larger than all the elements on their right.Therefore, let’s write the code for this function −ExampleThe code for this will ... Read More

A string can be considered as a valid hex code if it contains no characters other than the 0-9 and a-f alphabets.For example:'3423ad' is a valid hex code '4234es' is an invalid hex codeWe are required to write a JavaScript function that takes in a string and checks whether its ... Read More

We are required to write a JavaScript function that takes in an positive integer and returns its additive persistence.The additive persistence of an integer, say n, is the number of times we have to replace the number with the sum of its digits until the number becomes a single digit ... Read More

We are required to write a JavaScript function that takes in an array of numbers and checks if the elements of the array can be rearranged to form a sequence of numbers or not.For example: If the array is −const arr = [3, 1, 4, 2, 5];Then the output should ... Read More

We are required to write a JavaScript function that checks whether a sentence is smooth or not.A sentence is smooth when the first letter of each word in the sentence is the same as the last letter of its preceding word.Therefore, let’s write the code for this function −ExampleThe code ... Read More