所以我有一个具有设置值的单选按钮,我的js脚本应检查这些按钮的值并返回一个值= range
然后,“范围”应出现在价格范围输入中
但是我总是遇到这个Uncaught TypeError:无法设置null错误的属性“ value”,我认为它无法读取单选按钮的值,但是我已经检查过,而且似乎没有错别字或其他内容?
我知道在Stack Overflow上针对同一问题有很多答案,但是我无法通过其他问题/答案来解决我的问题,如果其他地方有我的答案,请通过链接进行纠正
// Price Range
VERBOSE = true;
$(document).ready(function() {
if (VERBOSE) {
console.log("ready gamme!");
}
document.querySelector('input[name="radio[answer]"]:checked').value = range
if (range == "1") {
return 7565;
} else if (range == "2") {
return 12345
} else if (range == "3") {
return 15400
}
document.getElementById('range').innerHTML = range
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script>
<div class="col-lg-5 col-sm-5">
<div class="heading-title">
<h2>Select a Price Range:</h2>
</div>
<!-- GAMME -->
<fieldset class="mt-60">
<div class="toggle-transparent toggle-bordered-full clearfix">
<div class="toggle active">
<div class="toggle-content">
<div class="row mb-0">
<div class="col-lg-12 m-0 clearfix">
<label class="radio float-left mt-0">
<input id="standard" name="radio[answer]" type="radio" value="1" />
<i></i> <span class="fw-300">Standard</span>
</label>
</div>
<div class="col-lg-12 m-0 clearfix">
<label class="radio float-left">
<input id="premium" name="radio[answer]" type="radio" value="2" />
<i></i> <span class="fw-300">Premium</span>
</label>
</div>
<div class="col-lg-12 m-0 clearfix">
<label class="radio float-left">
<input id="excelium" name="radio[answer]" type="radio" value="3" />
<i></i> <span class="fw-300">Excelium</span>
</label>
</div>
</div>
</div>
</div>
</div>
</fieldset>
答案 0 :(得分:1)
我在上面的评论来解释为什么您的代码无法按预期工作:
加载页面时,脚本正在运行,并且默认情况下不检查任何无线电,因此不会捕获该值,因为您的
querySelector
参数需要一个:checked
值。我建议在收音机上添加一个侦听器,并将显示的大部分代码用作侦听器的函数处理程序。
下面,我重构了您的代码,将eventListeners添加到您的每个无线电中,并将逻辑用作事件处理程序。
const radios = document.querySelectorAll('input[name="radio[answer]"]');
radios.forEach(r => {
r.addEventListener('change', evt => {
const checkedValue = (r.checked) ? r.value : 0;
let range;
if (checkedValue == "1") {
range = 7565;
} else if (checkedValue == "2") {
range = 12345
} else if (checkedValue == "3") {
range = 15400
}
document.getElementById('range').innerHTML = range
});
});
<div class="col-lg-5 col-sm-5">
<div class="heading-title">
<h2>Select a Price Range:</h2>
</div>
<!-- GAMME -->
<fieldset class="mt-60">
<div class="toggle-transparent toggle-bordered-full clearfix">
<div class="toggle active">
<div class="toggle-content">
<div class="row mb-0">
<div class="col-lg-12 m-0 clearfix">
<label class="radio float-left mt-0">
<input id="standard" name="radio[answer]" type="radio" value="1"/>
<i></i> <span class="fw-300">Standard</span>
</label>
</div>
<div class="col-lg-12 m-0 clearfix">
<label class="radio float-left">
<input id="premium" name="radio[answer]" type="radio" value="2" />
<i></i> <span class="fw-300">Premium</span>
</label>
</div>
<div class="col-lg-12 m-0 clearfix">
<label class="radio float-left">
<input id="excelium" name="radio[answer]" type="radio" value="3" />
<i></i> <span class="fw-300">Excelium</span>
</label>
</div>
</div>
</div>
</div>
</div>
</fieldset>
</div>
<div id="range"></div>