js ts 格式化日期(时间戳转年月日时分秒)

export enum FormatsEnums {
    
    
    YMD = 'Y-m-d',
    YMDHIS = 'Y-m-d H:i:s',
    _YMD = 'Y年m月d日',
    _YMDHIS = 'Y年m月d日 H时i分'
}

export const dateFormat = function (timestamp: number, formats: FormatsEnums): string {
    
    
    // formats格式包括
    // 1. Y-m-d
    // 2. Y-m-d H:i:s
    // 3. Y年m月d日
    // 4. Y年m月d日 H时i分
    formats = formats || 'Y-m-d';

    const zero = function (value: number): string | number {
    
    
        if (value < 10) {
    
    
            return '0' + value;
        }
        return value;
    };

    const myDate = timestamp? new Date(timestamp): new Date();

    const year = myDate.getFullYear();
    const month = zero(myDate.getMonth() + 1);
    const day = zero(myDate.getDate());

    const hour = zero(myDate.getHours());
    const minite = zero(myDate.getMinutes());
    const second = zero(myDate.getSeconds());

    return formats.replace(/Y|m|d|H|i|s/ig, function (matches: string): any {
    
    
        return ({
    
    
            Y: year,
            m: month,
            d: day,
            H: hour,
            i: minite,
            s: second
        })[matches];
    });
};