How do I pass arguments to a 'setTimeout' function?
How can I make these functions use variables for the id? I can't get the setTimeout to work when I do.
<script type="text/javascript">
function changeBarAWidth() {
var bar = document.getElementById('firstbar');
bar.style.width = lengthA + "px";
}
function increaseBarA() {
if (lengthA < fullBarA) {
changeBarAWidth();
lengthA = (lengthA + 2);
setTimeout("increaseBarA()", 10); // <-- How do I pass "firstbar"?
}
}
开发者_如何学Go function resetLengthA() {
lengthA = 0;
changeBarAWidth();
}
var barA = 'firstbar';
var percentA = 80;
var fullBarA = (percentA * 2);
var lengthA = 0;
</script>
<style type="text/css">
ul {
list-style-type: none;
}
.bar {
width: 50px;
height: 5px;
background-color: red;
}
.back {
background-color: black;
height: 5px;
width: 200px;
}
</style>
</head>
<body onload="increaseBarA()">
<ul>
<li class="back">
<p class="bar" id="firstbar"></p>
</li>
</ul>
<button onClick="increaseBarA()">Test Change</button>
<button onClick="resetLengthA()">Reset</button>
I had to use a setTimeout(function() { YourFuncwith(params); }, 10);.
Here is the script. If anybody would like copy, please do:
// functions to show poll reults, div width increase every tenth of a second,
// looks like poll is sliding.
// length is name of global length variable you declare, mine are at bottom of script
// I will use php to dynaimcally give variable values based on poll results.
function changeBarWidth(id, length) {
var bar = document.getElementById(id);
bar.style.width = length + "px";
}
/* max is how long you want the poll to slide to, my background is 200px
* so I set to (percent*2);
*/
function increaseBar(id, max, length) {
var full = max;
if (length < full) {
changeBarWidth(id, length);
length = (length + 2);
setTimeout(function() {
increaseBar(id, max, length);
}, 10);
}
}
var barA = 'firstbar';
var percentA = 80;
var fullBarA = (percentA * 2);
var lengthA = 0;
var lengthB = 0;ul {
list-style-type: none;
}
.bar {
width: 50px;
height: 5px;
background-color: red;
}
.back {
background-color: black;
height: 5px;
width: 200px;
}<body onload="increaseBar(barA, percentA, lengthA)">
<div id="pollresults">
<ul>
<li class="back">
<p class="bar" id="firstbar"></p>
</li>
<li class="back">
<p class="bar" id="secondbar"></p>
</li>
</ul>
</div>
<button onClick="increaseBar('secondbar',fullBarA,lengthB)">Test Change</button>
</body>
加载中,请稍侯......
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