Write a JavaScript function to calculate the percentage (%) of a given number.
Test: console.log(percentage(2000, 37.12));
Output: 742.4
Rotate a given string in the right direction by periodically removing one letter from the end of the string and attaching it to the front.
Test: rotateString("cat");
Output:
cat
tca
atc
cat
HINT: Use substring()
Write a JavaScript function to remove the first occurrence of a given 'search string' from a string.
Test: console.log(remove_first_occurrence("The quick brown fox jumps over the lazy dog", 'the'));
Output: "The quick brown fox jumps over lazy dog"
HINT: Use indexOf() and slice()
Write a JavaScript function that returns a passed string with letters in alphabetical order.
Test: console.log(alphabetic_order('webmaster'));
Output: abeemrstw
HINT: Use join(), split() and sort()
Write a JavaScript function to find the most frequent item in a given array.
Test: most_frequent([3, 'a', 'a', 'a', 2, 3, 'a', 3, 'a', 2, 4, 9, 3]);
Output: a occurs 5 times
Write a JavaScript function which iterates the integers from 1 to n. For multiples of three print "Fizz" beside the number and for the multiples of five print "Buzz". For numbers which are multiples of both three and five print "FizzBuzz".
Test: fizzbuzz(16);
Output:
3 Fizz
5 Buzz
6 Fizz
9 Fizz
10 Buzz
12 Fizz
15 FizzBuzz
Write a JavaScript program where the program takes a random integer between 1 to 10, the user is then prompted to input a guess number. If the user input matches with guess number, the program will display a message "Good Work" otherwise display a message "Not matched"
HINT: Use Math.ceil() and Math.random()
Source: w3resource