我正在制作一个老虎机,我想在有人点击添加或减少行时显示行。 我正在使用以下代码; 问题是当有人快速点击(比延迟时间更快)时,它会产生比预期更大的延迟。 这是演示(和 JSFiddle)
function arrowNumbers(id,min,max,difference){
if ((min === undefined) || (min < 0)){
min = 1;
}
if((difference === undefined)) {
difference = 1;
}
var previousArrow = $('.'+id+' .previous');
var nextArrow = $('.'+id+' .next');
var screenNumbers = $('.'+id+' span');
var actualNumber = $('.'+id+' span').text();
var n = actualNumber;
previousArrow.click(function(){
if (n>min){
if (parseInt(difference)>=parseInt(n))
n = min;
else
n = parseInt(n)-parseInt(difference);
showNumber(n);
if (id=='line')
showLines(n);
}
});
nextArrow.click(function(){
if (n<max){
if (parseInt(difference)+parseInt(n)>max)
n = max;
else
n = parseInt(n)+parseInt(difference);
showNumber(n);
if (id=='line')
showLines(n);
}
});
function showNumber(n){
screenNumbers.text(n);
}
}
function showLines(lines){
var container = 'lines';
var t = 1000;
switch (lines) {
case 20: $('.'+container+' .l.l-20').show(0).delay(t).hide(0);
case 19: $('.'+container+' .l.l-19').show(0).delay(t).hide(0);
case 18: $('.'+container+' .l.l-18').show(0).delay(t).hide(0);
case 17: $('.'+container+' .l.l-17').show(0).delay(t).hide(0);
case 16: $('.'+container+' .l.l-16').show(0).delay(t).hide(0);
case 15: $('.'+container+' .l.l-15').show(0).delay(t).hide(0);
case 14: $('.'+container+' .l.l-14').show(0).delay(t).hide(0);
case 13: $('.'+container+' .l.l-13').show(0).delay(t).hide(0);
case 12: $('.'+container+' .l.l-12').show(0).delay(t).hide(0);
case 11: $('.'+container+' .l.l-11').show(0).delay(t).hide(0);
case 10: $('.'+container+' .l.l-10').show(0).delay(t).hide(0);
case 9: $('.'+container+' .l.l-9').show(0).delay(t).hide(0);
case 8: $('.'+container+' .l.l-8').show(0).delay(t).hide(0);
case 7: $('.'+container+' .l.l-7').show(0).delay(t).hide(0);
case 6: $('.'+container+' .l.l-6').show(0).delay(t).hide(0);
case 5: $('.'+container+' .l.l-5').show(0).delay(t).hide(0);
case 4: $('.'+container+' .l.l-4').show(0).delay(t).hide(0);
case 3: $('.'+container+' .l.l-3').show(0).delay(t).hide(0);
case 2: $('.'+container+' .l.l-2').show(0).delay(t).hide(0);
case 1: $('.'+container+' .l.l-1').show(0).delay(t).hide(0);
}
}
arrowNumbers('line',1,20);
.lines {
width: 500px;
height: 200px;
}
.lines > .l { width:50px; height: 50px; color: #fff; float: left; background: #000; margin: 10px 0 0 0; display: none; }
.lines > .l:nth-child(2n){ background: rgba(0,0,0,.5); }
/* */
.line {
color: #fff;
font-size: 30px;
width: 300px;
height: 100px;
}
.line > .previous, .line > .next {
width: 100px;
height: 100%;
background: blue;
float: left;
}
.line > span {
width: 100px;
height: 100%;
background: green;
float: left;
display: block;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="lines">
<div class="l l-1">1</div>
<div class="l l-2">2</div>
<div class="l l-3">3</div>
<div class="l l-4">4</div>
<div class="l l-5">5</div>
<div class="l l-6">6</div>
<div class="l l-7">7</div>
<div class="l l-8">8</div>
<div class="l l-9">9</div>
<div class="l l-10">10</div>
<div class="l l-11">11</div>
<div class="l l-12">12</div>
<div class="l l-13">13</div>
<div class="l l-14">14</div>
<div class="l l-15">15</div>
<div class="l l-16">16</div>
<div class="l l-17">17</div>
<div class="l l-18">18</div>
<div class="l l-19">19</div>
<div class="l l-20">20</div>
</div>
<div class="line">
<div class="previous">
<div class="arrow">pre</div>
</div>
<span>1</span>
<div class="next">
<div class="arrow">next</div>
</div>
</div>
.delay()
事件在队列中“堆叠”并且不会在新调用时被取消。请查看此问题(可能是重复的)来解决这个问题。 - Spencer Wieczorek