We are required to write a JavaScript function that takes in a number, say n, as the first and the only argument.The function should then return the count of all the prime numbers from 2 upto the number n.For example −For n = 10, the output should be: 4 (2, ... Read More

Given an integer n, we have to write a function that returns the number of trailing zeroes in n!.For example −trailingZeroes(4) = 0 trailingZeroes(5) = 1 because 5! = 120 trailingZeroes(6) = 1Exampleconst num = 17; const findTrailingZeroes = num => {    let cur = 5, total = 0;    while (cur

Suppose, we have an array of objects like this −const arr = [    { "SupplierName" : "John", "Category " : "A", "Points" : 3 },    { "SupplierName" : "John", "Category " : "A", "Points" : 11 },    { "SupplierName" : "John", "Category " : "A", "Points" : ... Read More

Suppose, we have an array of string dates like this −const arr = [    "2017-01-22 00:21:17.0",    "2017-01-27 11:30:23.0",    "2017-01-24 15:53:21.0",    "2017-01-27 11:34:18.0",    "2017-01-26 16:55:48.0",    "2017-01-22 11:57:12.0",    "2017-01-27 11:35:43.0" ];We are required to write a JavaScript function that takes in one such array. The ... Read More

Suppose, we have a JavaScript array like this −const data = [    {       "dataId": "1",       "tableName": "table1",       "column": "firstHeader",       "rows": [          "a", "b", "c"       ]    },    {   ... Read More

We have to write a JavaScript program that takes a variable user string through an input in HTML. Then through JavaScript the program should check for more than one consecutive spaces in the string.And the program should replace all such instances of more than one consecutive spaces with only one ... Read More

We are required to write a JavaScript function that takes in an array of strings as the first argument and two numbers as second and third argument respectively.The purpose of our function is to sort the array. But we have to sort only that part of the array that falls ... Read More

We are required to write a function that finds the mean of the three scores passed to it and returns the letter value associated with that grade according to the following table.Exampleconst findGrade = (...scores) => {    const {       length    } = scores;    const ... Read More

Suppose we have an array of alphanumeric strings like this −const arr = ['A1', 'A10', 'A11', 'A12', 'A3A', 'A3B', 'A3', 'A4', 'B10', 'B2', 'F1', '1', '2', 'F3'];We are required to write a JavaScript function that in one such array as one and the only argument.And the function should sort this ... Read More

We are required to compare, and get the difference, between two arrays containing single character strings appearing multiple times in each array.Example of two such arrays are −const arr1 = ['A', 'C', 'A', 'D']; const arr2 = ['F', 'A', 'T', 'T'];We will check each character at the same position and ... Read More