Open lewenweijia opened 5 years ago
题目链接
递归版本
function reverseInt(n) { if (!n) return ''; let last = n % 10; let temp = parseInt(n / 10); return '' + (last ? last : '') + reverseInt(temp); }
// reverseInt(1230) -> "321" // reverseInt(1234) -> "4321"
2. 迭代版本 ```js function reverseInt(n) { let ans = ''; let last; while (true) { [last, n] = [n % 10, parseInt(n / 10)]; ans += last || ''; if (!n) break; } return ans; }
题目链接
递归版本
// reverseInt(1230) -> "321" // reverseInt(1234) -> "4321"