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munierujp/convertKatakanaToHiragana.ts

Last active March 12, 2021 08:50
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convertKatakanaToHiragana.ts
const KATAKANA_PATTERN = /[\u30A1-\u30FA]/g
function convertKatakanaToHiragana (katakana: string): string {
return katakana.replace(KATAKANA_PATTERN, toHiragana)
}
function toHiragana (katakana: string): string {
const code = katakana.charCodeAt(0) - 0x60
return String.fromCharCode(code)
}
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