javascript - 正则表达式允许中文或字母字符

Question

• 我试图允许输入中文或字母字符。

   var name="TEXT" //here input either alphabetic or Chinese Characters 请输入
   let reqChinesePos=/^[\u3000\u3400-\u4DBF\u4E00-\u9FFF]\d{8}$/;
   let reqEnglish=/^[A-Za-z]\d{40}$/
  
   console.log(reqEnglish.test(name)); //Here true but here also Chinese characters also match.
   console.log(reqChinesePos.test(name)); //Here true but here also alphabetic characters also match.
  

预期结果 ：

console.log(reqEnglish.test(name));//here only allow alphabetic characters not allow chinese.
console.log(reqChinesePos.test(name));//here only allow Chinese characters not allow English.

标签： javascriptregex

Answer 1

您的汉字字符类范围似乎是正确的，至少从这里的简单本地测试来看是正确的。但是，我看到这两种模式的另一个问题，因为\d如果你想在这两种情况下也允许罗马数字，它可能应该是字符类的一部分。进行此更改后，然后为输入提供宽度或宽度范围。假设你想要一个 8 的宽度，你可以尝试：

var reqChinesePos = /^[\u3000\u3400-\u4DBF\u4E00-\u9FFF\d]{8}$/;
var reqEnglish = /^[A-Za-z\d]{8}$/

var name1 = "大猫大猫大猫大猫";
var name2 = "JONATHAN";
var name3 = "BIGCAT大猫";

console.log(name1);
console.log(reqEnglish.test(name1));
console.log(reqChinesePos.test(name1));

console.log(name2);
console.log(reqEnglish.test(name2));
console.log(reqChinesePos.test(name2));

console.log(name3);
console.log(reqEnglish.test(name3));
console.log(reqChinesePos.test(name3));