Javascript 范围滑块值
我有一个简单的倒计时,每1秒从5到0:Javascript 范围滑块值,javascript,Javascript,我有一个简单的倒计时,每1秒从5到0: <html> <head> <meta charset="utf-8"/> <script src="https://cdnjs.cloudflare.com/ajax/libs/rxjs/6.5.5/rxjs.umd.js"> </script> </head> <body> <button id="start">START</butt
<html>
<head>
<meta charset="utf-8"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/rxjs/6.5.5/rxjs.umd.js">
</script>
</head>
<body>
<button id="start">START</button>
COUNTDOWN:<span id="countdown"></span>
<input id="time_delay" type="range" min="1000" max="10000" value="1000" step="1000">
<span id="time_delay">1000</span>
<script>
let start = document.getElementById('start');
let start_click = rxjs.fromEvent(start, 'click');
start_click.subscribe(x => console.log('click'));
start_click.pipe(rxjs.operators.tap()).subscribe(
()=> {
let time = rxjs.timer(0, 1000).pipe(
rxjs.operators.skip(0)
, rxjs.operators.take(6)
, rxjs.operators.map(x => 5-x)
);
time.subscribe(x => console.log('instant', x));
let countdown = document.getElementById('countdown');
time.subscribe(x => countdown.innerText = x);
start.disabled = true;
let end = time.pipe(
rxjs.operators.last()
, rxjs.operators.repeatWhen(() => start_click)
);
end.subscribe(x=>start.disabled = false);
start_click.subscribe(x => start.disabled = true);
});
</script>
</body>
</html>
开始
倒计时:
1000
让start=document.getElementById('start');
让start_click=rxjs.fromEvent(start,'click');
start_click.subscribe(x=>console.log('click'));
开始单击.pipe(rxjs.operators.tap())。订阅(
()=> {
让time=rxjs.timer(0,1000).pipe(
rxjs.operators.skip(0)
,rxjs.operators.take(6)
,rxjs.operators.map(x=>5-x)
);
订阅(x=>console.log('instant',x));
let countdown=document.getElementById('countdown');
订阅(x=>countdown.innerText=x);
start.disabled=true;
let end=time.pipe(
rxjs.operators.last()
,rxjs.operators.repeatWhen(()=>start\u单击)
);
end.subscribe(x=>start.disabled=false);
开始\单击.subscribe(x=>start.disabled=true);
});
我想学习如何使用范围滑块更改值。例如,当我更改滑块时,
let time=rxjs.timer(0,1000)
更改为let time=rxjs.timer(0,5000)
您可以尝试以下操作:
const timeDelay=document.querySelector('time_delay');
const timeDelayView=document.querySelector(“#time_delay_view”);
rxjs.fromEvent(timeDelay,'change')。订阅(()=>{
timeDelayView.innerText=timeDelay.value;
});
让start=document.getElementById('start');
让start_click=rxjs.fromEvent(start,'click');
start_click.subscribe(x=>console.log('click'));
开始单击.pipe(rxjs.operators.tap())。订阅(
()=> {
让time=rxjs.timer(0,timeDelay.value).pipe(
rxjs.operators.skip(0)
,rxjs.operators.take(6)
,rxjs.operators.map(x=>5-x)
);
订阅(x=>console.log('instant',x));
let countdown=document.getElementById('countdown');
订阅(x=>countdown.innerText=x);
start.disabled=true;
let end=time.pipe(
rxjs.operators.last()
,rxjs.operators.repeatWhen(()=>start\u单击)
);
end.subscribe(x=>start.disabled=false);
开始\单击.subscribe(x=>start.disabled=true);
});代码>
开始
倒计时:
1000