题解 | #字符串变形#
字符串变形
https://www.nowcoder.com/practice/c3120c1c1bc44ad986259c0cf0f0b80e
/** * 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可 * * * @param s string字符串 * @param n int整型 * @return string字符串 */ export function trans(s: string, n: number): string { // write code here const arr = s.split(" ").reverse(); const resultArr = []; arr.forEach((item) => { const strArr = item.split(""); let strResult = ""; strArr.forEach((chat) => { const chatValue = chat.charAt(0); if (chatValue >= "A" && chatValue <= "Z") { strResult += chat.toLowerCase(); } else { strResult += chat.toUpperCase(); } }); resultArr.push(strResult); }); return resultArr.join(" "); }