Backspace/Delete not working in Jquery alphanumeric validation

Question

Backspace/Delete not working in Mozilla Firefox for Jquery alphanumeric validation .

<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

Use this code

<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); 
        }
    });