jQuery只允许拉丁字符

Question

我想有一个js代码允许键入只有拉丁章程编号和特殊字符（Alt键盘序列，EX：!@#$%^&*()_|}{~!"?>:<?/][\=-'`，...），我试过这样，但它不为拉丁数字和隐形字符键盘工作，我该怎么办？

DEMO：https://jsfiddle.net/oosjtmgg/

 $(".latin_letters").on("keypress", function(event) { 
 
      var englishAlphabetAndWhiteSpace = /[A-Za-z ]/g; 
 
      var key = String.fromCharCode(event.which); 
 
      if (event.keyCode == 8 || event.keyCode == 37 || event.keyCode == 39 || englishAlphabetAndWhiteSpace.test(key)) { 
 
       return true; 
 
      } 
 
      return false; 
 
     }); 
 
     $('.latin_letters').on("paste", function(e) { 
 
      e.preventDefault(); 
 
     });

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> 
 
<input name="email" class="latin_letters">

Answer 1

请试试这个：

只加： - VAR englishAlphabetAndWhiteSpace =“/^[-@./# & + \ W \ s] * $ /“;

$(".latin_letters").on("keypress", function(event) { 
 
     var englishAlphabetAndWhiteSpace = /^[-@./#&+\w\s]*$/; 
 
      var key = String.fromCharCode(event.which); 
 
      if (event.keyCode == 8 || event.keyCode == 37 || event.keyCode == 39 || englishAlphabetAndWhiteSpace.test(key)) { 
 
       return true; 
 
      } 
 
      return false; 
 
     }); 
 
     $('.latin_letters').on("paste", function(e) { 
 
      e.preventDefault(); 
 
     });

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> 
 
<input name="email" class="latin_letters" type="text">

Answer 2

$(".latin_letters").on("keydown", function(event) { 
 
      var allowed = /[A-Za-z0-9!@#\$%\^&\*\(\)_|}{~">:<\?/\]\[\\=\- ]/g; 
 
      var key = String.fromCharCode(event.which); 
 
      if (event.keyCode == 8 || event.keyCode == 37 || event.keyCode == 39 || allowed.test(key)) { 
 
       return true; 
 
      } 
 
      return false; 
 
     }); 
 
$('.latin_letters').on("paste", function(e) { 
 
    e.preventDefault(); 
 
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> 
 
<input name="email" class="latin_letters">

这会为你工作。你以前没有测试过数字和信号。