Last active
May 24, 2019 14:59
-
-
Save kennyray/b35f4c6640be9539c5d16581de7714e0 to your computer and use it in GitHub Desktop.
Countdown timer
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| class CountdownTimer { | |
| constructor(minutesLabel = null, secondsLabel = null) { | |
| this.minutesLabel = minutesLabel; | |
| this.secondsLabel = secondsLabel; | |
| this.totalSeconds = (this.minutesLabel.textContent / 60) + this.secondsLabel.textContent; | |
| this.timer = null; | |
| } | |
| set minutesLabel(value) { | |
| this._minutesLabel = value; | |
| } | |
| set secondsLabel(value) { | |
| this._secondsLabel = value; | |
| } | |
| get minutesLabel() { | |
| return this._minutesLabel; | |
| } | |
| get secondsLabel() { | |
| return this._secondsLabel; | |
| } | |
| setTime() { | |
| this.totalSeconds--; | |
| if (parseInt(this.minutesLabel.innerHTML) == 0 && parseInt(this.secondsLabel.innerHTML) == 0) { this.stopTimer; return;} | |
| if (this.secondsLabel.innerHTML.textContent < 0) { this.secondsLabel.innerHTML = 59 } | |
| if (this.minutesLabel.innerHTML.textContent < 0) { this.minutesLabel.innerHTML = 59 } | |
| this.secondsLabel.innerHTML = this.pad((this.totalSeconds % 60)); | |
| this.minutesLabel.innerHTML = this.pad(Math.floor(this.totalSeconds / 60)); | |
| } | |
| pad(val) { | |
| var valString = val + ""; | |
| if (valString.length < 2) { | |
| return "0" + valString; | |
| } else { | |
| return valString; | |
| } | |
| } | |
| resetTimer() { | |
| clearInterval(this.timer); | |
| this.totalSeconds = 0; | |
| this.secondsLabel.innerHTML = this.pad(this.totalSeconds % 60); | |
| this.minutesLabel.innerHTML = this.pad(parseInt(this.totalSeconds / 60)); | |
| } | |
| startTimer() { | |
| this.timer = setInterval(this.setTime.bind(this), 1000); | |
| } | |
| stopTimer() { | |
| clearInterval(this.timer); | |
| } | |
| } | |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width"> | |
| <title>Countdown Timer</title> | |
| <script src="countdown_timer2.js"></script> | |
| </head> | |
| <body> | |
| <label id="minutes1">00</label>:<label id="seconds1">10</label> | |
| <br> | |
| <label id="minutes">00</label>:<label id="seconds">09</label> | |
| <script> | |
| const t1 = new CountdownTimer(document.getElementById("minutes1"), document.getElementById("seconds1")); | |
| //t1.startTimer(); | |
| const t2 = new CountdownTimer(document.getElementById("minutes"), document.getElementById("seconds")); | |
| console.log(t1.startTimer() === t2.startTimer()); | |
| t2.startTimer(); | |
| </script | |
| </body> | |
| </html> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment