ng-pattern无法正常工作，匹配每个字符串 [英] ng-pattern not working properly, matching every string
问题描述
我需要使用模式匹配来验证密码字段.我为此使用了ng-pattern.但是它不能正常工作.
I need to validate a password field with pattern matching. I used ng-pattern for that. But it is not working properly.
请参见此插件链接
我在这里给出的模式是，文本至少应包含8个字符，包括符号，字母和数字.但是，当我输入任何字符串时，模式匹配将变为true.
The pattern I gave here is, the text should contain at least 8 characters with symbols, alphabets and digits. But when I enter any string the pattern match become true.
请参见以下代码
<body ng-controller="MainCtrl">
<form name="form">
<input type="text" name="password" ng-model="user.password" ng-pattern="/(^.*(?=.{8,})(?=.*\d)(?=.*[a-z])(?=.*[\W]).*$)/">
<input type="submit">
{{form.password.$error}}
</form>
</body>
我在这里想念什么?
推荐答案
这似乎有效.如果字段无效，则表达式 {{form.password.$ error}} 将变为 true .空字段不会不得到验证.
This seems to be working. The expression {{form.password.$error}} becomes true if the field is invalid. The empty field does not get validated.
因此，输入 aaaaa (5个字母)会使该字段无效.由于长度的原因，添加 1 @ (数字和符号)仍然无效.添加任何内容即可使其生效(> = 8个字符，包括字母，数字，符号&rarr；显示屏显示 false ).
So entering aaaaa (5 letters) makes the field invalid. Adding 1@ (digit+symbol) is still invalid due to length. Adding anything makes it valid (>= 8 characters with letters, digits, symbols → the display says false).
这篇关于ng-pattern无法正常工作，匹配每个字符串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！
