get number of days between two dates code example

Example 1: javascript calculate time

console.time("timer");   //start time with name = timer
console.timeEnd("timer"); //end timer and log time difference

Example 2: angular calculate difference between two dates

// To set two dates to two variables 
    var date1 = new Date("06/30/2019"); 
	var date2 = new Date("07/30/2019"); 
  
    var Time = date2.getTime() - date1.getTime(); 
    var Days = Time / (1000 * 3600 * 24); //Diference in Days

Example 3: get days between two dates

// new Date("dateString") is browser-dependent and discouraged, so we'll write
// a simple parse function for U.S. date format (which does no error checking)
function parseDate(str) {
    var mdy = str.split('/');
    return new Date(mdy[2], mdy[0]-1, mdy[1]);
}

function datediff(first, second) {
    // Take the difference between the dates and divide by milliseconds per day.
    // Round to nearest whole number to deal with DST.
    return Math.round((second-first)/(1000*60*60*24));
}

alert(datediff(parseDate(first.value), parseDate(second.value)));