admin管理员组文章数量:1386311
i have this script in jsfiddle, that while im typing it should show display the live text underneath.
its a simple script, but i cnt seem to see what the problem is, thanks :))
/
EDIT: Adding code from link.
$(document).ready(function(){
$('#someTextBox').keyup(function(){
$('#target').html(this.val());
});
});
HTML
<textarea id="someTextBox"></textarea>
<div id="target"></div>
i have this script in jsfiddle, that while im typing it should show display the live text underneath.
its a simple script, but i cnt seem to see what the problem is, thanks :))
http://jsfiddle/XWsqz/
EDIT: Adding code from link.
$(document).ready(function(){
$('#someTextBox').keyup(function(){
$('#target').html(this.val());
});
});
HTML
<textarea id="someTextBox"></textarea>
<div id="target"></div>
Share
Improve this question
edited Nov 13, 2010 at 15:02
user113716
323k64 gold badges453 silver badges441 bronze badges
asked Nov 13, 2010 at 14:42
getawaygetaway
9,00023 gold badges66 silver badges96 bronze badges
2
- getaway - I took care of it here, but please place your code in the question in the future. Thanks. :o) – user113716 Commented Nov 13, 2010 at 14:49
- Nobody has mentioned the minor flaw in your event binding. See what happens when you hold down a letter? It will eventually update the target when you let the key go, but did you try pasting text with the mouse? You need to bind on more than just the keyup event if you want this to work for all updates to the textarea. – Bernhard Hofmann Commented Nov 14, 2010 at 9:04
5 Answers
Reset to default 7Should be $(this).val()
instead of this.val()
because this
points to the DOM element and not the jquery element which has the .val()
function defined:
$('#target').html($(this).val());
As everyone is suggesting, $(this).val()
will work. However, it doesn't make a lot of sense to incur the overhead of creating a jQuery wrapped object on every single keypress. this.value
is a better option if you don't need jQuery's extended methods on that element:
$(document).ready(function(){
$('#someTextBox').keyup(function(){
$('#target').html(this.value);
});
});
Use $(this).val()
instead of this.val()
.
The former is a jQuery object, the latter, I think, is simply a DOM node.
So:
$(document).ready(function(){
$('#someTextBox').keyup(function(){
$('#target').html($(this).val());
});
});
JS Fiddle demo.
You need to do $(this).val()
instead of this.val()
.val() is a jQuery function, so it only works when you're calling a jQuery object.
this
is not jQuery on its own (in your example). You have to wrap it in $( ), like so:
$(this)
So the correct way would be like so:
$("#target").html( $(this).val() );
本文标签: javascriptWhats wrong this live preview jQuery scriptStack Overflow
版权声明:本文标题:javascript - Whats wrong this live preview jQuery script? - Stack Overflow 内容由网友自发贡献,该文观点仅代表作者本人, 转载请联系作者并注明出处:http://www.betaflare.com/web/1744548936a2612066.html, 本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌抄袭侵权/违法违规的内容,一经查实,本站将立刻删除。
发表评论