Luxon is a powerful JavaScript date and time processing library that makes it ideal for developers with its simple and intuitive API, support for time intervals and durations, built-in time zone processing, and parsing and formatting capabilities of datetime, intervals and durations. This tutorial will guide you on how to use the Luxon library in your project.

Installation

One of the big advantages of Luxon is its cross-platform compatibility, which you can use in a variety of JavaScript environments, for example, loading directly in the browser via CDN.

After adding the following script tag:

<code><br></code>

You can run the following code in your browser:

<code>let DateTime = luxon.DateTime;<br><br>// 輸出: 2023-06-19T09:00:00.882+05:30<br>console.log(DateTime.now().toString());<br></code>

You can also install it through NPM:

<code>npm install --save luxon<br></code>

Then run the following code in your browser:

<code>const { DateTime } = require("luxon");<br><br>// 輸出: 2023-06-19T09:12:08.021+05:30<br>console.log(DateTime.now().toString());<br></code>

The official website details how to install and use the library in different environments.

Create DateTime object and access date and time information

Luxon's DateTime class is used to create DateTime objects representing a specific time, precise to milliseconds, and contains time zone and locale information.

There are many ways to create a DateTime object. The local() method can be called with or without parameters, and returns the current date and time without parameters, as shown in the example. now() The method is also used to obtain the current date and time, and its method name is clearer and easier to understand.

fromISO() method parses date-time strings in ISO format, and supports other string formats, for example, the fromHTTP() method parses strings that comply with the HTTP header specification.

After creating a date object, you can access date and time information using methods such as getMonth(), as well as obtain readable month or day of the week names (short and full versions). The plus() method can add a specific duration to the DateTime object. Luxon automatically deals with overflow issues, for example, subtracting 12 months from 2016-03-04 and subtracting 10 days from 2015-02-24.

Get the start and end time of the time unit

startOf() and endOf() methods can set the date and time to the start and end times of the specified time unit, and the supported units include 'quarter', 'week', 'hour', 'second', etc. The startOf() method sets all smaller units of time to the minimum; the endOf() method sets month, day, hour, minute, seconds, and milliseconds to the maximum.

Compare dates

Luxon provides easy date comparison capabilities. It implicitly gets the epoch timestamp to compare dates. hasSame() Method is used to compare whether two dates have the same year, month, or date. Note that comparisons such as "day" also include comparisons of year and month, and these three values ??must match to be considered the same day.

The following code demonstrates a date comparison in Luxon:

<code><br></code>

This tutorial covers the basic usage of the Luxon library, including creating DateTime objects, accessing date and time information, starting and ending time of time units, and date comparisons.

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