使用 EJS/Node.js 格式化日期

Question

I have a string with the following format:

2020-05-01T23:59:59

And I'd like the output to be formatted like so:

May 1, 2020 - 11:15pm

But I'm finding all kinds of conflicting info and nothing seems to be working.

Answer 1

Here, you have two options:

The first, and probably easier of the two options is to use a library like moment.js , which can easily achieve this like so:

moment().format("MMM D, YYYY - hh:mma")
// Should produce May 1, 2020 - 11:15pm

Or, if you must use vanilla JS, or are reluctant to install another package, you can do the following:

const currentDate = new Date();
const dateFormatter = new Intl.DateTimeFormat("en-us", {
  month: "long",
  day: "numeric",
  year: "numeric",
  hour: "numeric",
  minute: "numeric",
  hour12: true
});
const dateParts = Object.fromEntries(dateFormatter.formatToParts(currentDate).map(({ type, value }) => [type, value]));

const dateString = `${dateParts.month} ${dateParts.day}, ${dateParts.year} - ${dateParts.hour}:${dateParts.minute}${dateParts.dayPeriod.toLowerCase()}`;
// dateString should now contain the string May 1, 2020 - 11:15pm