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Write a function that loops through a Set using Set.prototype.forEach() method and returns an array containing the results of applying the provided function to each element.

Create a function that accepts a Set and a value to remove, and returns the updated Set after deleting the value.

Create a function that searches for the last index of a substring in an array using Array.prototype.lastIndexOf().

Create a function that takes a date and a year as arguments and returns a new date with the year set to the specified value using Date.prototype.setFullYear().

Sort an array of words based on their alphabetical order using String.prototype.localeCompare() method.

Write a function that converts a given string to its string representation using the toString() method.

Create a function that concatenates two strings using the String.prototype.concat() method. The function should take two string parameters and return the concatenated string.

Create a function that takes an array and reverse its order in place.

Write a function that takes a string and returns it in lowercase using the toLocaleLowerCase() method.

Create a function that checks if a given string ends with a specified suffix.

Write a function that returns whether a given string ends with the provided suffix or not

Write a function that takes an array and a value as arguments and returns the index of the last occurrence of that value in the array using Array.prototype.lastIndexOf(). If the value is not found, return -1.

Write a function that accepts a string and a number as arguments, then returns the character at that position in the string. Use String.prototype.charAt() for this exercise.

Write a function that extracts a character from a string given an index using String.prototype.charAt()

Create a function that returns the current date as a number (1-31).

Write a function that takes a date object and a number of seconds and returns a new date object with the seconds set to the provided value. Example input: setSeconds(new Date('2022-10-10T10:10:10'), 30) Expected output: new Date('2022-10-10T10:10:30')

Create a function that takes an array of numbers and returns the index of a given element. Use Array.prototype.findIndex() to implement the function.

Write a function that returns a substring of a given string, based on the start and end index provided

Write a function that converts a given string to uppercase

Convert a string to uppercase using String.prototype.toUpperCase();

Complete the functions provided to properly utilize the Date.now() method.

Create a function that replaces all occurrences of a substring with a new string.

Create a function that returns the month of a Date object in UTC time zone.

Implement a function that returns true if a given string starts with a specific substring.

Write a function that takes a date string as input and converts it to a UTC date string format.

Create a program that classifies music genres based on certain audio features

Create a function that takes a string as input and returns the string in all lowercase letters.

Given a date, return the UTC date.

Write a function that takes a date object and a number representing the desired month, and sets the month of the date to the given month.

Write a function that takes a string and returns an array of matched patterns using String.prototype.matchAll().

Create a function that takes in a string and uses String.prototype.match() to find all occurrences of a pattern within the string.

Create a function that accepts a string and a target length. If the length of the string is less than the target length, pad the string with spaces at the beginning until the target length is reached. If the string length is greater than or equal to the target length, return the original string.

Implement equations using the Array.of() method to create arrays.

Write a function that takes an integer n and returns the nth Fibonacci number using recursion.

Create a function that returns the current year using Date's built-in getFullYear method

Create a function that returns the current minutes.

Create a function that takes an array and a value as arguments and adds the value to the beginning of the array using the unshift() method.

Replace all vowels in a string with a '-'.

Write a function that returns a substring of a given string, starting at a specified index and ending before a specified index.

Write a function that checks whether a given string ends with the specified suffix or not.

Write a function that concatenates two strings using the String.prototype.concat() method.

Converts a given date to a time string

Create a function that takes a string and a number and pads that string with a specified character until it reaches the given length.

Create a function that repeats a given string n times.

Implement a function that takes a Date object as input and returns a formatted string

Create a function that sorts an array of strings in alphabetical order using String.prototype.localeCompare()

Write a function that takes a string as input and splits it into an array of words using String.prototype.split(). Then, join the array back into a string using Array.prototype.join(). Finally, return the new string with a different delimiter separating each word.

Given an array of numbers, use reduce method to obtain a single value that represents the sum of all numbers in the array.

Implement a function that takes a Date object and a number representing minutes and sets the UTC minutes of the Date object to the provided value. The function should return the updated Date object.

Create a function that takes in a string and checks if it starts with a given substring. Return a boolean indicating whether or not the string starts with the given substring.

Create a function that takes a string and returns a new string that is a slice of the original string. The function should take two arguments, start and end, which represent the starting and ending indices of the slice.

Implement a function that takes an array of strings and a search string, and returns a new array containing only the strings that includes the search string using String.prototype.includes() method.

Write a function that takes a date and returns the year in the hh:mm:ss format.

Write a function that takes in a string and a target substring, and returns the index at which the target substring is first found. If the target substring is not found in the string, return -1. Use the built-in JavaScript method `indexOf()` to solve the problem.

Write a function that flattens nested arrays using Array.prototype.flat() method.

A kata that requires the student to use String.prototype.split() to split a given string into substrings and perform a specified operation on them.

Write a function that takes a string and a regular expression and returns an array of all the substrings in the string that match the regular expression.

Implement a function that returns the current month from Date object using Date.prototype.getMonth()

Implement a function that uses String.prototype.trimEnd() to trim whitespace at the end of a string.

Given two arrays, join them to create a new array.

Write a function that takes two arrays as arguments and concatenates them into a new array using the Array.prototype.concat() method.

Implement a function that groups the elements of an array based on a given predicate function.

Write a function that joins two arrays into a single string using Array.prototype.join() method.

Create a function that normalizes a string using String.prototype.normalize method.

Create a function that takes a Date object and returns a JSON string of the date in ISO format.

Write a function that returns the result of a string match with a given pattern.

Write a function that finds the last index of a given element in an array using the Array.prototype.findLastIndex method.

Implement normalize method to format a string removing all the accents

Create a function that receives a Date object and returns the milliseconds that have elapsed since the start of the day.

Create a function that takes an array as input and returns a new array with the elements in reversed order.

Create a function that uses Array.prototype.entries() to iterate over an array and perform some operations.

Write a function that takes a string and a substring, and returns the index of the first occurrence of the substring in the string. If the substring is not found in the string, return -1.

Implement a function that sets the milliseconds of a given date object to a specified value.

Write a function that takes a string and returns an array of code points for each character in the string using String.prototype.codePointAt() method.

Given an array of objects, group the objects based on a specific key and return a map object.

Given an array of numbers and a start index, remove a certain number of elements from the array and replace them with new elements.

Write a function that returns the nth number in the Fibonacci sequence using recursion.

Combine two arrays into a single array using the Array.prototype.concat() method

Create a function that takes in a string and a length and returns a new string with the original string padded with leading spaces if it is shorter than the provided length.

Create a function that greets the user depending on the current hour of the day.

Create an Inventory Management System that allows users to add, remove and update items in the inventory.

In this kata, you will be working with the String.prototype.toLocaleUpperCase() method to convert a string to uppercase according to the user's locale.

Write a function that accepts a date object and a number of seconds (0 - 59) and returns a new date object with the seconds set to the provided value. The operation should be done using the setUTCSeconds() method.

Write a function that takes an array and a value and pushes the value to the end of the array using Array.prototype.push().

Create a function that uses Array.prototype.every() to check if all the elements in an array meet a certain condition.

Write a function that uses the Date.prototype.getDay() method to determine the day of the week for a given date object.

Implement a function that removes all unused items in a Set collection

Create a function that counts the number of seconds in a given timestamp

Create a function that takes a date and a year and sets the date's UTC full year to the provided year.

Create a Stock Advisor that recommends which stocks to buy based on certain parameters.

Create a function that removes white space at the end of a given string using String.prototype.trimEnd().

Implement various functionalities using Array.prototype.slice() method

Write a function that takes a string and a search term and returns the index of the first occurrence of the search term in the given string. If the search term is not present in the string, return -1.

Create a function that returns an array of values of an array using the Array.prototype.values() method.

Write a function that normalizes a string using String.prototype.normalize().

Write a function that can take in a list of numbers and precision cut them to a desired number of decimal places.

Create a function that takes an array as input and returns an array of the keys of the given array using Array.prototype.keys() method.

Implement a function that takes in a Set and returns an array of entries

Create a function that takes two parameters: a string and a target substring, and returns the index of the first occurrence of the target substring in the string. If the target substring is not found, return -1.

Given an array of person objects, sort them alphabetically by their last name using String.prototype.localeCompare().