如果文本输入中有突出显示的文本,如何删除所选文本?
我设置了一个小提琴来显示我走了多远,但我无法弄清楚如何删除给定的文本。
<input type='text' value='stackoverflow.com' id='text1' />
<br />
<button id="btnSelect">select text</button>
<button id="btnRemove">remove selected text</button>
selectionStart
和selectionEnd
可以从input
标签中获取选定的文本..查看演示
$("#btnSelect").click(function () {
document.getElementById('txtbox').setSelectionRange(6, 12);
});
$("#btnRemove").click(function () {
var ele = document.getElementById('txtbox');
var text = ele.value;
text = text.slice(0, ele.selectionStart) + text.slice(ele.selectionEnd);
ele.value = text;
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type='text' value='stackoverflow.com' id='txtbox' />
<br />
<button id="btnSelect">select text</button>
<button id="btnRemove">remove selected text</button>
function removeText()
{
document.getElementById('text1').value = "";
}
<input type='text' value='stackoverflow.com' id='text1' />
<br />
<button id="btnSelect">select text</button>
<button id="btnRemove" onclick="removeText()">remove selected text</button>