我有一个HTML列表,我想从用户选择中删除元素。我尝试使用this thread中的代码,但我的问题似乎是访问该元素。 这是我的HTML:
<div id="ShipPlacement">
Ship:
<select name="shipSelec" id="shipSelec">
<option value="aircraftCarrier">Aircraft Carrier</option>
<option value="battleship">Battleship</option>
<option value="cruiser">Cruiser</option>
<option value="destroyer">Destroyer</option>
<option value="destroyer">Destroyer</option>
<option value="submarine">Submarine</option>
<option value="submarine">Submarine</option>
</select>
<button type="button" onclick="placeShip()">Remove Selected Ship</button>
这是我的JavaScript:
$( document ).ready(function() {
var shipList=document.getElementById('shipSelec');
});
function placeShip() {
shipList.remove(shipList.options[shipList.selectedIndex].value;);
shipList.remove(shipList.options[shipList.selectedIndex]);
shipList.remove(shipList.options[selectedIndex]);
shiplist.remove([shipList.selectedIndex])
}
我有remove()
方法的几个实例,但它们都不起作用。
但是,我可以向您传达错误的最佳方式是through JSFiddle。
答案 0 :(得分:3)
当您在页面上加载jQuery时,使用它来绑定事件并从DOM中删除元素。
首先,使用:selected
在按钮上绑定点击事件。使用remove()
伪选择器从下拉列表中选择所选选项,并使用$('button').click(function() {
$('#shipSelec option:selected').remove();
});
将其从DOM中删除。
$(document).ready(function() {
$('button').click(function() {
$('#shipSelec option:selected').remove();
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="ShipPlacement">
Ship:
<select name="shipSelec" id="shipSelec">
<option value="aircraftCarrier">Aircraft Carrier</option>
<option value="battleship">Battleship</option>
<option value="cruiser">Cruiser</option>
<option value="destroyer">Destroyer</option>
<option value="destroyer">Destroyer</option>
<option value="submarine">Submarine</option>
<option value="submarine">Submarine</option>
</select>
<button type="button">Remove Selected Ship</button>
</div>
placeShip()
请注意,您的代码中存在多个问题
答案 1 :(得分:0)
$("#btn").click(function() {
$("#shipSelec option:disabled").prop("disabled", false)
$("#shipSelec option:selected").prop("disabled", true)
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="ShipPlacement">
Ship:
<select name="shipSelec" id="shipSelec">
<option value="aircraftCarrier">Aircraft Carrier</option>
<option value="battleship">Battleship</option>
<option value="cruiser">Cruiser</option>
<option value="destroyer">Destroyer</option>
<option value="destroyer">Destroyer</option>
<option value="submarine">Submarine</option>
<option value="submarine">Submarine</option>
</select>
<button type="button" id="btn">Remove Selected Ship</button>
我建议您暂停选项,不要删除