BlueWallet/blue_modules/bip39.js

import * as bip39 from 'bip39';

const WORDLISTS = [
  bip39.wordlists.english,
  bip39.wordlists.french,
  bip39.wordlists.spanish,
  bip39.wordlists.italian,
  bip39.wordlists.japanese,
  bip39.wordlists.korean,
  bip39.wordlists.chinese_simplified,
  bip39.wordlists.chinese_traditional,
  bip39.wordlists.czech,
  bip39.wordlists.portuguese,
];

export function validateMnemonic(mnemonic) {
  for (const wordlist of WORDLISTS) {
    const valid = bip39.validateMnemonic(mnemonic, wordlist);
    if (valid) return true;
  }
  return false;
}