题解 | #简单错误记录#

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

void (async function () {
    let errArr = [];
    while ((line = await readline())) {
        let tokens = line.split(" ");
        let nummber = tokens[1];
        let namearr = tokens[0].split("\\");
        let name = namearr[namearr.length - 1].slice(-16);//名称只保留最后16位
        //在已有的错误记录中寻找和当前输入的这条相同的错误记录
        let index = errArr.findIndex(
            (val) => val.name == name && val.nummber == nummber
        );
        if (index != -1) {
            //找到了的话则,不加新的错误记录，原有的相同的那条的数量加1
            errArr[index].count++;
        } else {
            //没找到则新加一条错误记录
            errArr.push({
                name,
                nummber,
                count: 1,
            });
        }
    };
    //只输出最后8条错误记录;
    errArr.slice(-8).forEach((item) => {
        console.log(item.name + " " + item.nummber + " " + item.count);
    });
})();