Backspace/Delete在Jquery字母数字验证中不起作用

Question

Backspace/Delete不起作用Mozilla Firefox用于Jquery字母数字验证。

<input type="text" id="myTextBox" /> 
$("#myTextBox").bind("keypress", function(event) { 
    var charCode = event.which; 

    var keyChar = String.fromCharCode(charCode); 
    return /[a-zA-Z0-9]/.test(keyChar); 
}); 

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Answer 1

使用此代码

<input type="text" id="myTextBox" /> 
$("#myTextBox").bind("keypress", function(event) { 
     var charCode = event.which; 

     if(charCode == 8 || charCode == 0) 
     { 
      return; 
     } 
     else 
     { 
      var keyChar = String.fromCharCode(charCode); 
      return /[a-zA-Z0-9]/.test(keyChar); 
     } 
    });