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December 20, 2019 05:09
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How to make a counter in JavaScript
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| <!DOCTYPE HTML> | |
| <html> | |
| <head> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"> | |
| <style> | |
| p { | |
| text-align: center; | |
| font-size: 60px; | |
| margin-top: 0px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <p id="demo"></p> | |
| <script> | |
| var now_date = new Date(); | |
| var countDownDate = now_date.setMinutes( now_date.getMinutes() + 5 ); | |
| // Update the count down every 1 second | |
| var x = setInterval(function() { | |
| // Get today's date and time | |
| var now = new Date().getTime(); | |
| // Find the distance between now and the count down date | |
| var distance = countDownDate - now; | |
| // Time calculations for days, hours, minutes and seconds | |
| var days = Math.floor(distance / (1000 * 60 * 60 * 24)); | |
| var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60)); | |
| var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60)); | |
| var seconds = Math.floor((distance % (1000 * 60)) / 1000); | |
| // Output the result in an element with id="demo" | |
| document.getElementById("demo").innerHTML = days + "d " + hours + "h " | |
| + minutes + "m " + seconds + "s "; | |
| // If the count down is over, write some text | |
| if (distance < 0) { | |
| clearInterval(x); | |
| document.getElementById("demo").innerHTML = "EXPIRED"; | |
| } | |
| }, 1000); | |
| </script> | |
| </body> | |
| </html> |
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