How to validate both Chinese (unicode) and English name?

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I have a multilingual website (Chinese and English).

I like to validate a text field (name field) in javascript. I have the following code so far.

var chkName = /^[characters]{1,20}$/;

if( chkName.test("[name value goes here]") ){
  alert("validated");
}

the problem is, /^[characters]{1,20}$/ only matches English characters. Is it possible to match ANY (including unicode) characters? I used to use the following regex, but I don't want to allow spaces between each characeters.

/^(.+){1,20}$/
character-properties unicode javascript regex
5 Answers

As of 2018, there is new syntax in JavaScript to match Chinese or any other non-ASCII scripts:

const REGEX = /(\p{Script=Hani})+/gu; // note the 'u'
'你好'.match(REGEX);
// ["你好"]

The trick is to use \p and use the right script name, Hani stands for Han script (Chinese). The full list of scripts is here: http://unicode.org/Public/UNIDATA/PropertyValueAliases.txt

To match both Chinese and English you just expand it a bit, for example:

const REGEX = /([A-Za-z]|\p{Script=Hani})+/gu;
// does not match accented letters though
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