If you have a requirement to get ShortDate (1/11/1900) and AM/PM time down to the second (2:12:27 PM) from a JavaScript Date object; use this Date prototype method "formatMMDDYYYY()" on the Date object:
Say we want to calculate the number of days between two given dates. We can utilize this .js function:
Also, although not referenced above because I wanted to show pure/plain .js in the example, there are several .js libraries for Date operations. The most popular of which seems to currently be: https://momentjs.com/
Reference: https://stackoverflow.com/questions/2035699/how-to-convert-a-full-date-to-a-short-date-in-javascript/2035706
Date.prototype.formatMMDDYYYY = function(){
return (this.getMonth() + 1) +
'/' + this.getDate() +
'/' + this.getFullYear();
}
var time = new Date();
console.log(time.formatMMDDYYYY() + ' ' +
time.toLocaleString('en-US', { hour: 'numeric', minute: 'numeric', second: 'numeric', hour12: true })
);
Say we want to calculate the number of days between two given dates. We can utilize this .js function:
function getDays(firstDate,secondDate){
var startDay = new Date(firstDate);
var endDay = new Date(secondDate);
var millisecondsPerDay = 1000 * 60 * 60 * 24;
var millisBetween = startDay.getTime() - endDay.getTime();
var days = millisBetween / millisecondsPerDay;
// Round down.
return Math.floor(days);
}
alert(getDays(Date(), '1/1/2017'));
Also, although not referenced above because I wanted to show pure/plain .js in the example, there are several .js libraries for Date operations. The most popular of which seems to currently be: https://momentjs.com/
Reference: https://stackoverflow.com/questions/2035699/how-to-convert-a-full-date-to-a-short-date-in-javascript/2035706
