ascor/lib/esm/date/dateFormat.js

一些常用的简单的js工具

import { isNumber, isString, isEmpty } from "../is/index";
/**
 * 时间格式化
 * @param {Date | Number} date 时间对象，如new Date(),new Date('2019/05/05 08:08:08') 或时间戳 如：1596507000
 * @param {String} fmt 格式，如”YYYY-mm-dd HH:MM:SS“
 * @return 返回格式化的字符串
 */
export const dateFormat = (date = new Date(), fmt = "YYYY-mm-dd HH:MM") => {
    if (isNumber(date)) {
        date = new Date(date);
    }
    if (isString(date)) {
        if (!isNaN(date)) {
            date = new Date(Number(date));
        }
        else {
            date = new Date(date.replace(/\-+/g, "/"));
        }
    }
    if (!(date instanceof Date) || isNaN(date.getTime())) {
        return date;
    }
    if (isEmpty(fmt)) {
        return date;
    }
    let opt = {
        "Y+": date.getFullYear().toString(),
        "y+": date.getFullYear().toString(),
        "m+": (date.getMonth() + 1).toString(),
        "d+": date.getDate().toString(),
        "H+": date.getHours().toString(),
        "M+": date.getMinutes().toString(),
        "S+": date.getSeconds().toString(),
    };
    for (let k in opt) {
        let ret = new RegExp("(" + k + ")").exec(fmt);
        if (ret) {
            fmt = fmt.replace(ret[1], ret[1].length == 1 ? opt[k] : opt[k].padStart(ret[1].length, "0"));
        }
    }
    return fmt;
};