Private slots are new and can be created via Static initialisation blocks in classes
class Translator {
static translations = {
yes: 'ja',
no: 'nein',
maybe: 'vielleicht',
};
static englishWords = [];
static germanWords = [];
static { // (A)
for (const [english, german] of Object.entries(this.translations)) {
this.englishWords.push(english);
this.germanWords.push(german);
}
}
}
console.log(Translator.englishWords, Translator.germanWords)
//Output -> ["yes", "no", "maybe"], ["ja", "nein", "vielleicht"]