JS format time (support applet, compatible with iOS)

 const REGEX =  /(\d{4})-(\d{2})-(\d{2})T(\d {2}) : (\d{2}) : (\d{2}) /
 export const formattime  = (val, format)+ ={ 
 if (val) { 
        /**
* @instructions If it is not a timestamp format and contains the character '-' then '-' replace '-' with '/' && delete the decimal point and subsequent digits
* @reason '-' replace '-' with '/' && delete the decimal point and the following number because the Safari browser only supports '/' separated time formats
         */
 if (val.toString(). indexOf ('-') > 0) {
 val = val. Replace (/t/g, "). Replace (/\.[ \d]{3}z/, "). Replace (/(-)/g, '/'); //Replace '-' with '/' 
 val = val. Slice (0, Val. ) indexOf (".")); //delete the decimal point and subsequent digits 
        }
Let   date  = new date(val); 
 Date. sethours (date. getHours () + 8); 
 const [Whole, yy, MM, DD, hh, MM, ss] = date.toisostring (). Match (REGEX); 
 const Year = new Date (). getFullYear (); 
 const Month = new Date (). GetMonth () + 1; 
 Const Dates = new Date (). GetDate (); 
 if (format) { 
 return  format 
                . Replace (' yyyy ', yy) 
                . Replace (' yy ', Yy.slice (2)) 
                . Replace (' mm ', mm) 
                . Replace (' DD ', DD) 
                . Replace (' hh ', hh) 
                . Replace (' mm ', mm) 
                . Replace (' SS ', ss) 
 } else { 
 return [yy, MM, Dd].join('-') + ' + [hh, MM, SS]. Join (': '); 
        }
 } else { 
 return '--'; 
    }
}

JS format time (support applet, compatible with iOS)