如何从输入文本中删除所选文本?

问题描述

如果文本输入中有突出显示的文本，该如何删除所选文本?

If there is highlighted text inside of a text input, how do I remove the selected text?

我设置了一个小提琴以显示我走了多远，但我不知道如何删除给定的文本.

I set up a fiddle to show how far I got, but I can't figure out how to remove the given text.

<input type='text' value='stackoverflow.com' id='text1' />
<br />
<button id="btnSelect">select text</button>
<button id="btnRemove">remove selected text</button>

推荐答案

selectionStart和selectionEnd可以从input标记中获取选定的文本.查看演示

selectionStart and selectionEnd are there to get selected text from input tag ..check the demo

$("#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>

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