Longest and shortest word

function solve (str) {
    str = str.replace(/,/g,"");
    str = str.replace(/\./g,"");
    str = str.replace(/!/g,"");
    str = str.replace(/\?/g,"");
    str = str.split(' ');

    let min = Infinity;
    let max = 0;
    let longest = '';
    let shortest = '';

    for (let i in str) {
        let len = str[i].length;

        if (len < min && str[i] != parseInt(str[i])) {
            min = len;
            shortest = str[i];
        }
        if (len > max && str[i] != parseInt(str[i])) {
            max = len;
            longest = str[i];
        }
    }

    console.log(`Longest -> ${longest}`);
    console.log(`Shortest -> ${shortest}`);

}