Function formatDate

wxapp/parkson.js:52–57

(date = new Date(), separator = "-")

}

function formatDate(date = new Date(), separator = "-") {
    const y = date.getFullYear();
    const m = String(date.getMonth() + 1).padStart(2, "0");
    const d = String(date.getDate()).padStart(2, "0");
    return [y, m, d].join(separator);
}

class Task {
    constructor(openid) {