x/masx200_leetcode_test/remove-outermost-parentheses/index.ts
1234567891011121314151617export default function removeOuterParentheses(s: string): string { let level = 0; return Array.prototype.map.call(s, (c) => { if (c === ")") { level--; } try { return level ? c : ""; } finally { if (c === "(") { level++; } } }).join("");}