challenges

goal: make the program print your name in capital letters, three times on one line.

hint: upper makes text loud, repeat repeats a string, and + glues strings together.

let name = "ada"
// make it shout: ADA ADA ADA
print(name)

goal: add up only the odd numbers from 1 to 20 and print the total (it should be 100).

hint: a for loop over range(1, 21), an if with % 2, and += — or filter and sum in a pipe.

let total = 0
for n in range(1, 21) {
  // add n only when it is odd
}
print(total)

goal: print the longest word in the list (it should be "lumencoding").

hint: keep a best-so-far variable, walk the list, and compare with len(word).

let words = ["code", "lumencoding", "glow", "play"]
let best = ""
for w in words {
  // update best when w is longer
}
print(best)

goal: sort the players by score, highest first, and print each line as "name: score".

hint: sort takes a comparator fn(a, b), and entries of a map give you [key, value] pairs to build the list first.

let scores = { ada: 12, grace: 25, edsger: 8 }
// turn entries into a sorted list, then print each line

goal: hide the vowels: print the message with every "a", "e", "i", "o", "u" replaced by "*".

hint: chars splits text into letters; map over them, swap vowels, then join("") back together.

let message = "lumen glows in the dark"
// replace each vowel with * and print the result