practice mode on phones
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function romanToInt(s) {
JavaScript · leetcode · type the snippet below to practice
def fib(n):
a, b = 0, 1
for _ in range(n):
a, b = b, a + b
return a
about this snippet
This is the romantoint snippet in JavaScript — a classic LeetCode interview problem. Type it through to build the muscle memory you need to write it under interview pressure. DeveloperType scores you on net WPM and accuracy and only counts runs above 95% accuracy on the leaderboard, so practice rewards precision, not speed alone.
view source (11 lines)
function romanToInt(s) {
const map = { I: 1, V: 5, X: 10, L: 50, C: 100, D: 500, M: 1000 };
let total = 0;
for (let i = 0; i < s.length; i++) {
const curr = map[s[i]];
const next = map[s[i + 1]] || 0;
total += curr < next ? -curr : curr;
}
return total;
}
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