删除特殊字符，但允许空格

Question

I have the following which removes special characters from being entered into a input

$('input').on('keypress', function (event) {
    var regex = new RegExp("^[a-zA-Z0-9]+$");
    var key = String.fromCharCode(!event.charCode ? event.which : event.charCode);
    if (!regex.test(key)) {
        event.preventDefault();
        return false;
    }
});

Is there any way I can add spaces to this, and limit it to only 8 characters being entered?

Thanks

Answer 1

You can do it like this:

^[a-zA-Z0-9\\s]+$

Add a whitespace with \\s

• Match the beginning of the string ^
• Your characters including a whitespace [a-zA-Z0-9\\s]
• Match the end of the string $