Javascript

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javascript date time

//Date, Time, Timestamp
var today = new Date();
var DD = String(today.getDate()).padStart(2, '0');
var MM = String(today.getMonth() + 1).padStart(2, '0'); //January is 0!
var YYYY = today.getFullYear();
var hh = today.getHours();
var mm = today.getMinutes();
var ss = today.getSeconds();
today = YYYY + MM + DD + hh + mm + ss;
console.log('Date-Time: ', today);

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date and time in javascript

var dateWithTime = new Date().toLocaleString().replace(",", "")
console.log(dateWithTime)  
//output :6/24/2022 9:36:33 PM

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date time js

//Do you need the current time ? ⌚
let date = new Date();
let time = ((date.getHours().toString()).length>1? date.getHours() : "0"+date.getHours()) +":"+ ((date.getMinutes().toString()).length>1? date.getMinutes() : "0"+date.getMinutes());
//If 4h-2min => 04:02
//If 20h-15min => 20:15

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display time and date in javascript

<!DOCTYPE html>
<html>
<body>

<button type="button"
onclick="document.getElementById('display').innerHTML = Date()">
Click me to display Date and Time.</button>

<p id="display"></p>

</body>
</html>

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date javascript

let mdy = ['month', 'date', 'year'];
let hms = ['hour', 'minute', 'second'];
mdy = new Date().toLocaleDateString("en-US").split("/");
hms = new Date().toLocaleTimeString("en-US").split(/:| /);
console.log(mdy,hms);

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javascript date

const currentDate = new Date();
const currentMonth = currentDate.getMonth() + 1;
const currentDay = currentDate.getDate();
const currentYear = currentDate.getFullYear();

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date in javascript

var d = new Date();

//1628202691394 miliseconds passed since 1970
Number(d) 
Date("2017-06-23");                 // date declaration
Date("2017");                       // is set to Jan 01
Date("2017-06-23T12:00:00-09:45");  // date - time YYYY-MM-DDTHH:MM:SSZ
Date("June 23 2017");               // long date format
Date("Jun 23 2017 07:45:00 GMT+0100 (Tokyo Time)"); // time zone

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date and time javascript

// To test a function and get back its return
function printElapsedTime(fTest) {
  let nStartTime = Date.now(),
      vReturn = fTest(),
      nEndTime = Date.now()

  console.log(`Elapsed time: ${ String(nEndTime - nStartTime) } milliseconds`)
  return vReturn
}

let yourFunctionReturn = printElapsedTime(yourFunction)

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date in javascript

let daysAdded = 10
let date = new Date(Date.now())
let result = new Date(
  new Date(Date.now()).setDate(date.getDate() + daysAdded)
);

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Date javascript

var d= new Date();  // generate today's DATE
console.log (d);

var s= new Date ("2020-09-15"); // generate the specific DATE:spetember 9 2020
var y=new Date().getFullYear(); // generate the year of specific DATE
var m=new Date().getMonth(); // generate the month of specific DATE
var d=new Date().getDay(); // generate the day of specific DATE
var D=new Date().getDate(); // generate  the specific DATE

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Dates in Javascript

var date1 = new Date();
var date2 = new Date();

if (date1.getTime() === date2.getTime()) { // 1605815698393 === 1605815698393 
    console.log("Dates are equal");
}
else {
    console.log("Dates are Not equal");
}

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javascript date

<!DOCTYPE html>
<html>
  
<head>
    <title>How to get current date in JavaScript?</title>
</head>
  
<body>
    <h1 style="color: green">
        GeeksforGeeks
    </h1> 
    <b>How to get current date in JavaScript?</b>
      
<p> Current Date is: <span class="output"></span></p>
  
    <button onclick="getCurrentDate()">Get current Date</button>
      
    <script type="text/javascript">
    function getCurrentDate() {
        let date = new Date().toDateString();
        document.querySelector('.output').textContent = date;
    }
    </script>
</body>
  
</html>

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new date javascript

/*Get date from JS API - Date() class*/
let local_date = new Date();
alert("it is " + local_date + "!")

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date javascript

const regexDate = /^d{2}/d{2}/d{4}$/

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