如何将分钟添加到番茄钟?
How can I add minutes to a pomodoro clock?
我是一名 JS 新手,正在尝试构建一个功能最少的番茄时钟。虽然我有基本的倒计时工作,但我在为计时器实现 'add additional minute' 功能时遇到了困难。
到目前为止,我在变量声明后立即粘贴了这个:
// Add more minutes to timer
add.addEventListener("click", addMin);
function addMin() {
mins += 1;
timer.textContent = mins + ":" + "0" + currentSecs;
}
虽然这会在倒计时之前添加分钟数,但不会更新实际的倒计时分钟数。我哪里出错了?非常感谢对这个问题有新的看法(并拯救几只小猫..)
我在下面添加了HTML和JS代码:
var timer = document.getElementById("timer"),
button = document.getElementById("button"),
add = document.getElementById("add"),
minus = document.getElementById("minus"),
numOfPomodoros = 0;
// Variables for the Countdown to Work:
var mins = 25,
secs = mins * 60,
currentSecs = 0,
currentMins = 0,
comingOffBreak = false;
button.addEventListener("click", startCountdown);
function startCountdown() {
setTimeout(countdown, 500);
}
function countdown() {
currentMins = Math.floor(secs / 60);
currentSecs = secs % 60;
if (currentSecs <= 9) {
// Add an extra zero to the seconds in order to make it look more like a clock
currentSecs = "0" + currentSecs;
}
secs--;
timer.textContent = currentMins + ":" + currentSecs;
if (secs !== -1) {
// Continue the countdown
setTimeout(countdown, 1000);
} else {
// When countdown reaches 0...
if (!comingOffBreak) {
// If user just finished a pomodoro...
countNumOfPomodoros();
if (numOfPomodoros % 4 === 0) {
button.textContent = "Start Long Break";
resetForLongBreak();
} else {
button.textContent = "Start Short Break";
resetForShortBreak();
};
} else {
// If user just finished a break...
button.textContent = "Start Pomodoro";
resetCountdown();
};
};
}
function countNumOfPomodoros() {
// Add 1 to numOfPomodoros after each pomodoro is completed
numOfPomodoros++;
return numOfPomodoros;
}
function resetCountdown() {
// For new pomodoro
mins = 25;
secs = mins * 60;
currentSecs = 0;
currentMins = 0;
comingOffBreak = false;
}
function resetForShortBreak() {
mins = 5;
secs = mins * 60;
currentSecs = 0;
currentMins = 0;
comingOffBreak = true;
}
function resetForLongBreak() {
mins = 30;
secs = mins * 60;
currentSecs = 0;
currentMins = 0;
comingOffBreak = true;
}
<div class="container text-center">
<h1 id="title">POMODORO CLOCK</h1>
<div id="timerBox">
<span id="timer">25:00</span>
</div>
<br>
<button id="minus" class="btn btn-danger">- Minute </button>
<button id="button" class="btn btn-success">Start Pomodoro</button>
<button id="add" class="btn btn-primary">+ Minute</button>
</div>
您正在更新方法和文本中的 mins
变量,而不是倒计时方法中考虑的变量秒数。
我也会考虑重构如下:
- 有一个番茄钟开始的变量,
- 有另一个增加分钟数的变量,
- 然后使用以下 pseudo-expression 获取要显示的剩余秒数,而不用倒计时更新变量:
25 * 60 + extraMins * 60 - <current-time-in-secs> + <start-time-in-secs>
我是一名 JS 新手,正在尝试构建一个功能最少的番茄时钟。虽然我有基本的倒计时工作,但我在为计时器实现 'add additional minute' 功能时遇到了困难。
到目前为止,我在变量声明后立即粘贴了这个:
// Add more minutes to timer
add.addEventListener("click", addMin);
function addMin() {
mins += 1;
timer.textContent = mins + ":" + "0" + currentSecs;
}
虽然这会在倒计时之前添加分钟数,但不会更新实际的倒计时分钟数。我哪里出错了?非常感谢对这个问题有新的看法(并拯救几只小猫..)
我在下面添加了HTML和JS代码:
var timer = document.getElementById("timer"),
button = document.getElementById("button"),
add = document.getElementById("add"),
minus = document.getElementById("minus"),
numOfPomodoros = 0;
// Variables for the Countdown to Work:
var mins = 25,
secs = mins * 60,
currentSecs = 0,
currentMins = 0,
comingOffBreak = false;
button.addEventListener("click", startCountdown);
function startCountdown() {
setTimeout(countdown, 500);
}
function countdown() {
currentMins = Math.floor(secs / 60);
currentSecs = secs % 60;
if (currentSecs <= 9) {
// Add an extra zero to the seconds in order to make it look more like a clock
currentSecs = "0" + currentSecs;
}
secs--;
timer.textContent = currentMins + ":" + currentSecs;
if (secs !== -1) {
// Continue the countdown
setTimeout(countdown, 1000);
} else {
// When countdown reaches 0...
if (!comingOffBreak) {
// If user just finished a pomodoro...
countNumOfPomodoros();
if (numOfPomodoros % 4 === 0) {
button.textContent = "Start Long Break";
resetForLongBreak();
} else {
button.textContent = "Start Short Break";
resetForShortBreak();
};
} else {
// If user just finished a break...
button.textContent = "Start Pomodoro";
resetCountdown();
};
};
}
function countNumOfPomodoros() {
// Add 1 to numOfPomodoros after each pomodoro is completed
numOfPomodoros++;
return numOfPomodoros;
}
function resetCountdown() {
// For new pomodoro
mins = 25;
secs = mins * 60;
currentSecs = 0;
currentMins = 0;
comingOffBreak = false;
}
function resetForShortBreak() {
mins = 5;
secs = mins * 60;
currentSecs = 0;
currentMins = 0;
comingOffBreak = true;
}
function resetForLongBreak() {
mins = 30;
secs = mins * 60;
currentSecs = 0;
currentMins = 0;
comingOffBreak = true;
}
<div class="container text-center">
<h1 id="title">POMODORO CLOCK</h1>
<div id="timerBox">
<span id="timer">25:00</span>
</div>
<br>
<button id="minus" class="btn btn-danger">- Minute </button>
<button id="button" class="btn btn-success">Start Pomodoro</button>
<button id="add" class="btn btn-primary">+ Minute</button>
</div>
您正在更新方法和文本中的 mins
变量,而不是倒计时方法中考虑的变量秒数。
我也会考虑重构如下:
- 有一个番茄钟开始的变量,
- 有另一个增加分钟数的变量,
- 然后使用以下 pseudo-expression 获取要显示的剩余秒数,而不用倒计时更新变量:
25 * 60 + extraMins * 60 - <current-time-in-secs> + <start-time-in-secs>