js string 转date

let dateString = "2023-10-05";
let dateObject = new Date(dateString);
console.log(dateObject); // 输出: Thu Oct 05 2023 00:00:00 GMT+0800 (中国标准时间)

function parseDate(dateStr) {
    let dateFormats = [
        /^(\d{4})-(\d{1,2})-(\d{1,2})$/, // YYYY-MM-DD
        /^(\d{1,2})\/(\d{1,2})\/(\d{4})$/, // MM/DD/YYYY
        /^(\d{1,2})-(\d{1,2})-(\d{4})$/  // DD-MM-YYYY
    ];

    for (let format of dateFormats) {
        let match = dateStr.match(format);
        if (match) {
            let [, year, month, day] = match;
            return new Date(year, month - 1, day);
        }
    }
    throw new Error("Invalid date format");
}

console.log(parseDate("10/05/2023")); // 输出: Thu Oct 05 2023 00:00:00 GMT+0800 (中国标准时间)

function isValidDate(dateStr) {
    let date = new Date(dateStr);
    return !isNaN(date.getTime());
}

if (isValidDate("2023-10-32")) {
    console.log("Valid date");
} else {
    console.log("Invalid date");
}

let dateString = "2023-10-05T12:00:00Z"; // UTC时间
let dateObject = new Date(dateString);
console.log(dateObject.toISOString()); // 输出: 2023-10-05T12:00:00.000Z