Javascript javascript验证中名称字段的正则表达式
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Regular expression for name field in javascript validation
提问by user1179752
i need a regular expression in javascript validation. Regular expression for name field that will accept alphabets and only space character between words and total characters in the field should be in between 2 and 30. i.e., the field should accept min 2 chars and max of 30 chars
我需要在 javascript 验证中使用正则表达式。名称字段的正则表达式将接受字母和单词之间的空格字符和字段中的总字符应在 2 到 30 之间。即，该字段应接受最少 2 个字符和最多 30 个字符
回答by Adeel Ahmed
function validate(id)
{
var regex = /^[a-zA-Z ]{2,30}$/;
var ctrl = document.getElemetnById(id);
if (regex.test(ctrl.value)) {
return true;
}
else {
return false;
}
}
回答by skub
Try this:
尝试这个：
/^([a-zA-Z ]){2,30}$/
回答by sourcecode
your solution would be.
你的解决方案是。
/^[a-zA-Z ]{2,30}$/;
Note: just add a space within the brackets. other whitespace characters like -tab, form feed, and line feed ,will not match.
注意：只需在括号内添加一个空格。其他空白字符，如 -tab、换页符和换行符，将不匹配。
