We are required to write a JavaScript function that takes in an array of numbers and uses the quick sort algorithm to sort it.QuickSortThis algorithm is basically a divide and conquer algorithm where we pick a pivot in every pass of loop and put all the elements smaller than pivot ... Read More

In the English language, all these characters are considered as punctuations −'!', ", " ,"\'" ,";" ,"\"", ".", "-" ,"?"We are required to write a JavaScript function that takes in a string and count the number of appearances of these punctuations in the string and return that count.ExampleLet’s write the ... Read More

We are required to write a JavaScript function that takes in two 2-D arrays and returns a boolean based on the check whether the arrays are equal or not.The equality of these arrays, in our case, is determined by the equality of corresponding elementsBoth the arrays should have same number ... Read More

TransposeThe transpose of a matrix (2-D array) is simply a flipped version of the original matrix (2-D array). We can transpose a matrix (2-D array) by switching its rows with its columns.Let’s say the following is our 2d array −const arr = [    [1, 1, 1],    [2, 2, ... Read More

We have an array of literals that contains some duplicate values appearing for many times like this −const arr = [1, 4, 3, 3, 1, 3, 2, 4, 2, 1, 4, 4];We are required to write a JavaScript function that takes in this array and pick out all the duplicate ... Read More

Disarium Number − All those numbers which satisfy the following equation are dDisarium number −xy...z = x^1 + y^2 + ... + z^nWhere n is the number of digits in the number.For example −175 is a disarium number be: 175 = 1^1 + 7^2 + 5^3 = 1 + 49 ... Read More

We are required to write a JavaScript function that takes in a number (representing the number of days) and returns an object with three properties, namely −weeks, months, years, daysAnd the properties should have proper values of these four properties that can be made from the number of days. We ... Read More

A number is called Armstrong number if the following equation holds true for that number −xy..z = x^n + y^n+.....+ z^nWhere, n denotes the number of digits in the numberFor example − 370 is an Armstrong number because −3^3 + 7^3 + 0^3 = 27 + 343 + 0 = ... Read More

Circumference of a circle is given by −pi * (r * r)And area of a circle is given by −2 * pi * rWhere r is the radius of the circle.We are required to write a JavaScript function that takes in the radius of circle and calculates the difference between ... Read More

We are required to write a JavaScript function that takes in three or more numbers and returns the largest of those numbers.For example: If the input numbers are −4, 6, 7, 2, 3Then the output should be −7ExampleLet’s write the code for this function −// using spread operator to cater ... Read More