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;

void async function () {
    while(line = await readline()){
        let tokens = line.split(' ');
        let b = parseInt(tokens[tokens.length-1].length);
        console.log(b);
    }
}()