如何将jquery代码转换为原型代码? [英] How can convert jquery code to prototype code?
本文介绍了如何将jquery代码转换为原型代码?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有一个jquery代码,但无法正常工作,似乎我需要原型代码.
I have a jquery code but is not working and seems that I need prototype code.
这是代码: http://jsfiddle.net/qKG5F/1627/ >
Here is the code: http://jsfiddle.net/qKG5F/1627/
<script type="text/javascript">
(function() {
$('form > input').keyup(function() {
var empty = false;
$('form > input').each(function() {
if ($(this).val() == '') {
empty = true;
}
});
if (empty) {
$('#search').attr('disabled', 'disabled');
} else {
$('#search').removeAttr('disabled');
}
});
})()
</script>
<form>
FROM<br />
<input type="text"/><br />
TO<br />
<input type="text"/><br />
<input type="submit" id="search" value="GO" disabled="disabled" />
</form>
请有人可以帮我将这个jquery转换为原型代码吗?
Please somebody can help me to convert this jquery to prototype code?
将接受所有类型的帮助.
All kind of help will be accepted.
推荐答案
出于完整性考虑,我继续将您的代码转换为PrototypeJS.找到第一个空字段后,我对代码进行了一些优化(很抱歉无法解决).
For sake of completeness I went ahead and converted your code to PrototypeJS. I optimized the code a bit (sorry can't help it) to exit when the first empty field is found.
<script type="text/javascript">
document.observe('dom:loaded',function(){
$$('form > input').invoke('observe','keyup',function() {
var empty = false;
$$('form > input').each(function() {
if (this.value == '') {
empty = true;
throw $break;
}
});
$('search').writeAttribute('disabled',empty);
});
});
</script>
<form>
FROM<br />
<input type="text"/><br />
TO<br />
<input type="text"/><br />
<input type="submit" id="search" value="GO" disabled="disabled" />
</form>
这篇关于如何将jquery代码转换为原型代码?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文