Javascript 尝试在范围上使用setStart和setEnd时出错:未捕获索引SizeError:未能执行';setEnd';在';范围';
当我尝试使用某个范围时,在控制台上出现以下错误:Javascript 尝试在范围上使用setStart和setEnd时出错:未捕获索引SizeError:未能执行';setEnd';在';范围';,javascript,range,Javascript,Range,当我尝试使用某个范围时,在控制台上出现以下错误: Uncaught IndexSizeError: Failed to execute 'setEnd' on 'Range': The offset 2 is larger than or equal to the node's length (0). 这是我的剧本: <script type="text/javascript"> function gotMark() { var range = docume
Uncaught IndexSizeError: Failed to execute 'setEnd' on 'Range': The offset 2 is larger than or equal to the node's length (0).
这是我的剧本:
<script type="text/javascript">
function gotMark() {
var range = document.createRange();
var startNode = document.getElementById("dividTeste1").firstChild;
range.setStart(startNode, 0);
range.setEnd(startNode, 2);
var newNode = document.createElement("span");
range.surroundContents(newNode);
}
</script>
函数gotMark(){
var range=document.createRange();
var startNode=document.getElementById(“dividTeste1”).firstChild;
range.setStart(startNode,0);
range.setEnd(起始节点,2);
var newNode=document.createElement(“span”);
range.surroundContents(newNode);
}
和第页:
<div class="ui-block-a" id="divid" value="div1">
<div style="background-color: black; color: white; padding: 20px;" id="divid2">
<h2>London</h2>
<p id="dividTeste1">London is the capital city of England. It is the most
populous city in the United Kingdom, with a metropolitan area of
over 13 million inhabitants.</p>
</div>
<div style="background-color: black; color: white; padding: 20px;" id="divid2">
<h2>London</h2>
<p id="dividTeste2">London is the capital city of England. It is the most
populous city in the United Kingdom, with a metropolitan area of
over 13 million inhabitants.</p>
</div>
</div>
<input type="button" value="Marcar com range" onClick="gotMark()"
id="marcarconranger12" />
伦敦
伦敦是英国的首都。这是最重要的
英国人口稠密的城市,大都市区为
超过1300万居民
伦敦
伦敦是英国的首都。这是最重要的
英国人口稠密的城市,大都市区为
超过1300万居民
我试着按照中的说明选择开始和结束位置。我找到了一行erro的解决方案
function gotMark() {
var range = document.createRange();
var startNode = document.getElementById("dividTeste1").firstChild;
range.setStart(startNode, 0);
range.setEnd(startNode, 2);
var newNode = document.createElement("span");
*newNode.className = 'highlight-yellow';*
range.surroundContents(newNode);
}
现在选择已被取消