Javascript 附加选项以选择菜单？
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时间：2020-08-23 16:01:42 来源:igfitidea点击:
append option to select menu?
提问by Skizit
Using Javascript how would I append an option to a HTML select menu?
使用 Javascript 如何将选项附加到 HTML 选择菜单？
e.g to this:
例如：
<select>
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="mercedes">Mercedes</option>
<option value="audi">Audi</option>
</select>
回答by Marcus Fr?din
Something like this:
像这样的东西：
var option = document.createElement("option");
option.text = "Text";
option.value = "myvalue";
var select = document.getElementById("id-to-my-select-box");
select.appendChild(option);
回答by Ryan Miller
$(document).ready(function(){
$('#mySelect').append("<option>BMW</option>")
})
回答by Matt Ball
HTML
HTML
<select id="mySelect">
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="mercedes">Mercedes</option>
<option value="audi">Audi</option>
</select>
JavaScript
JavaScript
var mySelect = document.getElementById('mySelect'),
newOption = document.createElement('option');
newOption.value = 'bmw';
// Not all browsers support textContent (W3C-compliant)
// When available, textContent is faster (see http://stackoverflow.com/a/1359822/139010)
if (typeof newOption.textContent === 'undefined')
{
newOption.innerText = 'BMW';
}
else
{
newOption.textContent = 'BMW';
}
mySelect.appendChild(newOption);
回答by imkost
You can also use insertAdjacentHTMLfunction:
您还可以使用insertAdjacentHTML功能：
const select = document.querySelector('select')
const value = 'bmw'
const label = 'BMW'
select.insertAdjacentHTML('beforeend', `
<option value="${value}">${label}</option>
`)
