用于特殊字符验证的javascript代码 [英] javascript code for special character validation
本文介绍了用于特殊字符验证的javascript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
大家好
我需要一个JavaScript代码，不允许使用特殊字符和数字，并允许
我的文本框中的空格
在此先感谢
afsal
Hi All
i need a javascript code for not allowing special characters and numbers and allow
spaces in my text box
thanks in advance
afsal
推荐答案
本文包含一个小型JS框架，其中包含您需要的内容.还有更多类似性质的东西.
用于常见验证场景的微型Javascript框架. [ ^ ]
P.S.只需将AcceptAlphabetOnly函数的参数用作true即可.
This article contains a small JS framework which contains what you need. also many more of similar nature.
A Tiny Javascript Framework for Common Validation Scenarios.[^]
P.S. just use theAcceptAlphabetOnlyfunction with argument for spaces astrue.
这是一个类似的简单示例:
以下是过滤方法:
This is a simple sample of similar thing:
Here is how to filter out:
<html>
<head>
<script type="text/javascript"><!--
function filterDigits(eventInstance) {
eventInstance = eventInstance || window.event;
key = eventInstance.keyCode || eventInstance.which;
if ((47 < key) && (key < 58) || key = 45 || key == 8) {
return true;
} else {
if (eventInstance.preventDefault) eventInstance.preventDefault();
eventInstance.returnValue = false;
return false;
} //if
} //filterDigits
--></script>
</head>
<body">
<input type="text" onkeypress="filterDigits(event)"/>
</body>
</html>
请注意，允许使用键码8(退格键).由于某些历史原因，此键被视为字符，因此应特别允许通过过滤器.
Pay attention that the key code 8 (backspace) is allowed. By some historical reason, this key is considered as a character, so it should be specifically allowed through the filter.
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