<JavaScript> Memo: A Function to Order Amateur Radio Callsigns According to JARL Bureau's Rule - Qiita

<JavaScript> Memo: A Function to Order Amateur Radio Callsigns According to JARL Bureau's Rule Goal To issue QSL cards (contact confirmation cards) to amateur radio stations, we need to sort them according to a certain rule defined by JARL (Japan Amateur Radio League): I wrote a function to obtain sorting keys from callsigns for this purpose. Code const JACallSignRegex = /^(?<prefix>J[A-S]|7[J-N]|