Two lines of code implement timestamp formatting js

// timestamp format, toJSON turn is GMT +8 hours GMT

function dateTime(time = +new Date()) {
    var date = new Date(time + 8 * 3600 * 1000);
    return date.toJSON().substr(0, 19).replace('T', ' ').replace(/-/g, '.');
}

 

Content from: https://segmentfault.com/a/1190000015992232
 added if the parameter is 10 digits or ten digits of the string can use the following code

function dateTime(time) {
    time = time+'000'
    var date = new Date(parseInt(time) + 8 * 3600 * 1000);
    return date.toJSON().substr(0, 19).replace('T', ' ').replace(/-/g, '.');
}