English 中文(简体)
创建Range 函数除 IE 外,在其他浏览器中不工作
原标题:createRange function is not working in other browsers except IE
  • 时间:2012-05-21 10:45:33
  •  标签:
  • javascript

我有一个文本框。 当我写第一个文本时, Java 脚本功能会点火检查它是否是一个数字 。

对于 IE, 以下代码返回 -1 值, 但其它浏览器没有提醒任何值。 请帮助我

var selected = document.selection.createRange();
var decInSel = selected.text.indexOf( . );
hasNegInSel  = selected.text.indexOf( - ) != -1;
alert(decInSel);
问题回答

document. sselect. createRange () is IE & lt; 9 仅... 您为交叉浏览器支持设置以下函数 。

function getSelectedText() {
  if (window.getSelection) {  // all browsers, except IE before version 9
    var selectionRange = window.getSelection ();                                        
    return selectionRange.toString();
  } else {
    if (document.selection.type ==  None ) {
        return "";
    } else {
        var textRange = document.selection.createRange();
        return textRange.text;
    }
  }
}

"http://help.dottoro.com/ljefwsqm.php" rel="无跟随" >这里的参考

所以,你的完整的代码 会看起来像这个:

var selected = getSelectedText()
var decInSel = selected.indexOf( . );
hasNegInSel  = selected.indexOf( - ) != -1;
alert(decInSel);

使用使用

窗口。 getSection()

Does chrome suppose docured documents.section?

其它浏览器使用文本框的 selectiveStart selectEnd 属性。 您可以使用以下方法在这些浏览器中的文本框中获取选中文本 :

var input = document.getElementById("textBox");
var selectedText = input.value.slice(input.selectionStart, input.selectionEnd);




相关问题
selected text in iframe

How to get a selected text inside a iframe. I my page i m having a iframe which is editable true. So how can i get the selected text in that iframe.

How to fire event handlers on the link using javascript

I would like to click a link in my page using javascript. I would like to Fire event handlers on the link without navigating. How can this be done? This has to work both in firefox and Internet ...

How to Add script codes before the </body> tag ASP.NET

Heres the problem, In Masterpage, the google analytics code were pasted before the end of body tag. In ASPX page, I need to generate a script (google addItem tracker) using codebehind ClientScript ...

Clipboard access using Javascript - sans Flash?

Is there a reliable way to access the client machine s clipboard using Javascript? I continue to run into permissions issues when attempting to do this. How does Google Docs do this? Do they use ...

javascript debugging question

I have a large javascript which I didn t write but I need to use it and I m slowely going trough it trying to figure out what does it do and how, I m using alert to print out what it does but now I ...

Parsing date like twitter

I ve made a little forum and I want parse the date on newest posts like twitter, you know "posted 40 minutes ago ","posted 1 hour ago"... What s the best way ? Thanx.

热门标签