Is there a way to validate if my time period falls on the same date?
let startTime = currentSelection.startTimeHr + ":" + currentSelection.startTimeMin + " " +
currentSelection.startTimeAMPM;
let endTime = currentSelection.stopTimeHr + ":" + currentSelection.stopTimeMin + " " +
currentSelection.stopTimeAMPM;
startTime = 02:30 AM
endTime = 06:45 PM
I am looking for a boolean value (true/false) as the validation result.
If you want to compare times, one approach is to convert them into date objects for easy comparison. Here is a simple script that demonstrates this:
var time1 = "02:30 AM",
time2 = "06:45 PM";
var d1 = new Date(),
parts1 = time1.match(/(\d+)\:(\d+) (\w+)/),
hours1 = /am/i.test(parts1[3]) ? parseInt(parts1[1], 10) : parseInt(parts1[1], 10) + 12,
minutes1 = parseInt(parts1[2], 10);
d1.setHours(hours1);
d1.setMinutes(minutes1);
var d2 = new Date(),
parts2 = time2.match(/(\d+)\:(\d+) (\w+)/),
hours2 = /am/i.test(parts2[3]) ? parseInt(parts2[1], 10) : parseInt(parts2[1], 10) + 12,
minutes2 = parseInt(parts2[2], 10);
d2.setHours(hours2);
d2.setMinutes(minutes2);
if(d1 < d2)
alert('Time1 is earlier than Time2');
else
alert('Time2 is earlier than Time1');
You have the option to utilize momentjs for comparing two dates to see if they are on the same day, before, or after each other.
For example, moment('2010-10-20').isSame('2010-10-20'); will return true.
To calculate the time taken for an operation, use the getTime method from the date object.
Check out this example:
var end, start;
start = new Date();
// Introducing a slight delay
for (var i = 0; i < 1000; i++) {
Math.sqrt(i);
}
end = new Date();
console.log('The operation required ' + (end.getTime() - start.getTime()) + ' milliseconds');
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTime
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