IsYesterday

IsYesterday adiciona o método .isYesterday() para verificar se a data representada pelo objeto Day.js corresponde a ontem.

var isYesterday = require('dayjs/plugin/isYesterday');
// import isYesterday from 'dayjs/plugin/isYesterday' // ES 2015

dayjs.extend(isYesterday);

dayjs().add(-1, 'day').isYesterday(); // true