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EsdrasCodevs.john_tonn

02/05 TBS Engineering Morning Kick-off Dojo

Code
Diff
  • const tr = {
  "I": 1,
  "V": 5,
  "X": 10,
  "L": 50,
  "C": 100,
  "D": 500,
  "M": 1000
}

function solution (roman_string) {
  return roman_string.split('').reduce((acc, curr, idx, arr) => 
    tr[curr] < tr[arr[idx + 1]] ? acc - tr[curr] : acc + tr[curr], 0)
}
    • var tr = {
    • const tr = {
    • "I": 1,
    • "V": 5,
    • "X": 10,
    • "L": 50,
    • "C": 100,
    • "D": 500,
    • "M": 1000
    • }
    • function solution (roman_string) {
    • return roman_string.split('').map((letter, index, a) => {
    • const current_value = tr[letter];
    • const next_value = tr[a[index+1]];
    • return next_value && current_value < next_value ?
    • (- current_value) : current_value;
    • }).reduce((acc, item) => acc + item, 0);
    • }
    • return roman_string.split('').reduce((acc, curr, idx, arr) =>
    • tr[curr] < tr[arr[idx + 1]] ? acc - tr[curr] : acc + tr[curr], 0)
    • }