Write a function isPangram(sentence). It takes a string of lower-case Latin letters and returns true if it has every one of the 26 letters of the alphabet. Otherwise return false.
isPangram('thequickbrownfoxjumpsoverthelazydog')Returns true
isPangram('leetcode')Returns false
isPangram('thequickbrownfoxjumpsoverthelazydog')trueisPangram('leetcode')falseisPangram('abcdefghijklmnopqrstuvwxyz')trueHidden tests run on Submit.