问题描述
我有两个选择字段。一个选择T恤设计的字段,另一个选择T恤的颜色。
目标是默认禁用所有T恤颜色,直到首先从“设计”列表中选择一个设计。选择设计后,该设计类别中的颜色将被启用,而另一个设计类别中的颜色将保持禁用,反之亦然。永远不要一次全部启用它们。
我尝试编写和重新编写我的JavaScript函数以使其多次运行,并且每次控制台均未显示任何错误,但同时也无法按我的意愿运行。
我做错了什么?
const tshirtDesignSelection = document.getElementById("design");
const heartJsColors = document.querySelectorAll('.heartJsGroup');
const jsPunsColors = document.querySelectorAll('.jsPunsGroup');
function tshirtSelectorFunction() {
for (let i = 0; i < tshirtDesignSelection.length; i++) {
tshirtDesignSelection[i].addEventListener('change',() => {
if (tshirtDesignSelection[i].value === "js_puns") {
heartJsColors[0].disabled = true;
} else if (tshirtDesignSelection[i].value === "heart_js") {
jsPunsColors.disabled = true;
} else {
jsPunsColors.disabled = true;
heartJsColors.disabled = true;
}
});
}
}
tshirtSelectorFunction();
<div>
<label for="design">Design:</label>
<select id="design" name="user-design" onchange="tshirtSelectorFunction()">
<option value="default_design" disabled selected>Select Theme</option>
<option value="js_puns" id="jsPunsTheme" class="designOptions">Theme - JS Puns</option>
<option value="heart_js" id="heartJSTheme" class="designOptions">Theme - I ♥ JS</option>
</select>
</div>
<div id="shirt-colors" class="shirt-colors">
<label for="color">Color:</label>
<select id="color">
<option value="default_color" disabled selected>Please select a T-shirt theme</option>
<option value="cornflowerblue" class="jsPunsGroup">Cornflower Blue (JS Puns shirt only)</option>
<option value="darkslategrey" class="jsPunsGroup">Dark Slate Grey (JS Puns shirt only)</option>
<option value="gold" class="jsPunsGroup">Gold (JS Puns shirt only)</option>
<option value="tomato" class="heartJsGroup">Tomato (I ♥ JS shirt only)</option>
<option value="steelblue" class="heartJsGroup">Steel Blue (I ♥ JS shirt only)</option>
<option value="dimgrey" class="heartJsGroup">Dim Grey (I ♥ JS shirt only)</option>
</select>
</div>
解决方法
签出this,它还包括有关如何执行类似操作的查询版本
而不是使用thing.disabled
,请尝试使用thing.setAttribute()
和thing.removeAttribute()