[伸手党]求个正则判断字符串是否日文

Question

实在找好久找不到,求帮忙

Answer 1

var chinese = "你好";

var japanese = "にほんご";

var japanese2 = "你好こんにちは你好";

var reg = /[\u0800-\u4e00]+/

console.log(reg.test(chinese));//false

console.log(reg.test(japanese));//true

console.log(japanese2.match(reg)[0]);//こんにちは

Answer 2

以前的gist收藏过

//

// 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

/[\u3000-\u303F]|[\u3040-\u309F]|[\u30A0-\u30FF]|[\uFF00-\uFFEF]|[\u4E00-\u9FAF]|[\u2605-\u2606]|[\u2190-\u2195]|\u203B/g

\u意思是unicode符号，-代表range