Regex to test for presence of Japanese characters

JapaneseRegex.js

// REFERENCE UNICODE TABLES: 
// http://www.rikai.com/library/kanjitables/kanji_codes.unicode.shtml
// http://www.tamasoft.co.jp/en/general-info/unicode.html
//
// TEST EDITOR:
// http://www.gethifi.com/tools/regex
//
// UNICODE RANGE : DESCRIPTION
// 
// 3000-303F : punctuation
// 3040-309F : hiragana
// 30A0-30FF : katakana
// FF00-FFEF : Full-width roman + half-width katakana
// 4E00-9FAF : Common and uncommon kanji
// 
// Non-Japanese punctuation/formatting characters commonly used in Japanese text
// 2605-2606 : Stars
// 2190-2195 : Arrows
// u203B     : Weird asterisk thing

var regex = /[\u3000-\u303F]|[\u3040-\u309F]|[\u30A0-\u30FF]|[\uFF00-\uFFEF]|[\u4E00-\u9FAF]|[\u2605-\u2606]|[\u2190-\u2195]|\u203B/; 
var input = "input string"; 
if(regex.test(input)) {
    console.log("Japanese characters found")
}
else {
    console.log("No Japanese characters");
}

Thank you

Thank you so much, helped me out big time!

Works like a charm, thanks.

I believe this code is what the kids call "bussin"

Thanks you

the g is unnecessary and can cause bugs because it introduces state into the regex that affects subsequent calls to .test

@aehlke wow, long time no see! I’ll edit it lol

hey @ryanmcgrath it's been a long time indeed! I have this snippet in an older part of my app and hadn't realized it's from you :D hope you're doing well, and thanks for the edit