Answers for "javascript school months"

months js

const months = Array.from({ length: 12 }, (_, monthNumber) => {
    const date = new Date(0, monthNumber);
    return date.toLocaleDateString('pt-BR', {month: "long"});
})

// ['janeiro', 'fevereiro'....]

js months ago

var d = new Date();
d.setMonth(d.getMonth() - 3);