我具有此滑块过滤器功能,正在尝试通过一个属性data-length
过滤某些文本。这样,当滑块达到某个值时,它只会显示该数据长度值或更小的文本。
这是滑块和过滤器功能:
var slider = document.getElementById("myRange");
var output = document.getElementById("demo");
output.innerHTML = slider.value;
slider.oninput = function() {
output.innerHTML = this.value;
}
function filterSystem() {
$("em.match.js-match").hide().filter(function () {
var length = parseInt($(this).attr("data-length"));
return slider.value <= length;
}).show();
}
如果有人可以告诉我为什么该功能filterSystem无法按我的要求工作?
谢谢!
p.s。我不想使用jquery-ui
答案 0 :(得分:2)
我发现了两个问题:
您从未打过filterSystem();
您没有在项目中包含jQuery
。
已更新:
slider.oninput = function() {
output.innerHTML = this.value;
filterSystem();
}
工作演示
var slider = document.getElementById("myRange");
var output = document.getElementById("demo");
output.innerHTML = slider.value;
slider.oninput = function() {
output.innerHTML = this.value;
filterSystem();
}
function filterSystem() {
$("em.match.js-match").css({
'background-color': '#fff',
'color': '#000'
}).filter(function() {
var length = parseInt($(this).attr("data-length"));
if (slider.value <= length) {
$(this).css({'background-color': $(this).attr("data-color"), 'color':'#fff'})
}
});
}
.slidecontainer {
width: 100%;
}
.slider {
-webkit-appearance: none;
width: 100%;
height: 15px;
border-radius: 5px;
background: #d3d3d3;
outline: none;
opacity: 0.7;
-webkit-transition: .2s;
transition: opacity .2s;
}
.slider:hover {
opacity: 1;
}
.slider::-webkit-slider-thumb {
-webkit-appearance: none;
appearance: none;
width: 25px;
height: 25px;
border-radius: 50%;
background: #4CAF50;
cursor: pointer;
}
.slider::-moz-range-thumb {
width: 25px;
height: 25px;
border-radius: 50%;
background: #4CAF50;
cursor: pointer;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<h1>Round Range Slider</h1>
<div class="" "slidecontainer">
<input type="range" min="1" max="100" value="50" class="slider" id="myRange">
<p>Value: <span id="demo"></span></p>
</div>
<div class="document__body">
<p xml:id="100">
<em class="match js-match" data-algorithm="text" data-algorithm-type="text" data-color="#2d2f49" data-id="match_1" data-length="22" data-reference="0" style="background-color: rgb(45, 47, 73); color: rgb(255, 255, 255);">This has 22 characters</em>
</p>
<p xml:id="101">
<em class="match js-match match--active" data-algorithm="text" data-algorithm-type="text" data-color="#009b8b" data-id="match_20" data-length="12" data-reference="0" style="background-color: rgb(0, 155, 139); color: rgb(255, 255, 255);">This only 12</em>
</p>
</div>