japanese-numeral-utils

Utilities for handling Japanese numerals.

Installation

$ npm install @leonsk32/japanese-numeral-utils --save

Usage

import { 
  fullWidthAlphabet2HalfWidthAlphabet,
  isFullWidthAlphabetical,
  isKanjiNumeric,
  kanji2Arabic,
  halfWidthText2FullWidthText
} from "@leonsk32/japanese-numeral-utils";

console.log(kanji2Arabic("九千八百七十六兆五千四百三十二億九千八百七十六万五千四百三十二"));
// "9876543298765432"

console.log(kanji2Arabic("一二三四五六七八九〇"));
// "1234567890"

console.log(kanji2Arabic("四百五千")); // invalid kanji number
// throw TypeError

console.log(isKanjiNumeric("〇一二三四五六七八九"));
// true

console.log(isKanjiNumeric("123"));
// false

console.log(fullWidthAlphabet2HalfWidthAlphabet("ＡＢＣＤＥＦＧＨＩＪＫＬＭＮＯＰＱＲＳＴＵＶＷＸＹＺａｂｃｄｅｆｇｈｉｊｋｌｍｎｏｐｑｒｓｔｕｖｗｘｙｚ"));
// "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"

console.log(fullWidthAlphabet2HalfWidthAlphabet("ＡBCＤ"));
// "ABCD"

console.log(isFullWidthAlphabetical("ＡＢＣａｂｃ"));
// true

console.log(isFullWidthAlphabetical("abcABC"));
// false

console.log(halfWidthText2FullWidthText("ｱｶｻABCz123abc"))
// "アカサＡＢＣｚ１２３ａｂｃ"

console.log(halfWidthText2FullWidthText("あABCい"))
// "あＡＢＣい"