js 计算时间差 All In One

js 计算时间差 All In One

dayjs 计算时间差

const old = '2019-12-22'
const now = '2021-12-22'

const days = now - old;
// ?

const old = dayjs('2019-12-22')
const now = dayjs('2021-12-22');

const days = now.diff(old, 'day');
// 731

now.diff(dayjs('2020-12-22'), 'day');
// 365

refs

https://day.js.org/docs/zh-CN/durations/durations

https://day.js.org/docs/zh-CN/display/difference#docsNav

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