AI solution for JavaScript Coding Question on BFE.dev
133. roman numerals to integer

One possible solution using JavaScript is:

function romanToInteger(s) {  const romanValues = {    I: 1,    V: 5,    X: 10,    L: 50,    C: 100,    D: 500,    M: 1000,  };  let result = 0;    for (let i = 0; i < s.length; i++) {    const current = romanValues[s[i]];    const next = romanValues[s[i + 1]];        if (next && next > current) {      result -= current;    } else {      result += current;    }  }    return result;}

Explanation:

• We create an object romanValues that maps each symbol to its integer value.
• We initialize a variable result to 0.
• We loop through each character of the input string s.
• We check if the next symbol has a higher value than the current one. If so, we subtract the current value from the result (since it's a subtractive notation). Otherwise, we add it to the result.
• Finally, we return the result.

This solution has a time complexity of O(n) and a space complexity of O(1).