题解 | #字符串最后一个单词的长度#

const rl = require("readline").createInterface({ input: process.stdin });
var iter = rl[Symbol.asyncIterator]();
const readline = async () => (await iter.next()).value;

//方法一:借助split方法
void async function () {
    const line = await readline();
    const list = line.split(" ").join().split(",");
    console.log(list[list.length-1].length) ;
}()

//方法二：遍历
void (async function () {
    let pre=0,cur=0;
    const line = await readline();
    for(const c of line){
        if(c === " ") [pre,cur] = [cur?cur:pre,0];
        else cur++;
    }
    console.log(cur?cur:pre);
})();