That said, I think that's an okay tradeoff.
However, if you are working on a performance sensitive web application, it might cause a huge performance overhead because of its complex APIs and large bundle size. Use it by default when building or interacting with APIs, communicating times over a wire, etc. Moment.js is a fantastic time & date library with lots of great features and utilities. Luxon can parse a wide range of them, but provides direct support for formatting only a few of them: Generally, you'll want the first one. const currentMonth require ('moment') monthNow currentMonth ().format ('MM')) const currentYear require ('moment') yearNow currentYear (). As of version 2.13.0, when in UTC mode, the default format is governed by faultFormatUtc which is in the format YYYY-MM-DDTHH:mm:ss Z. moment ().format () moment ().format (String) Observe the following examples to gain a better understanding on displaying date using the format method. Out of the box, faultFormat is the ISO8601 format YYYY-MM-DDTHH:mm:ssZ.
Moment format iso#
The main con I see with this is that anybody using UMD bundles would need to include additional script tags with all dependencies from other sources, e.g:, and that these would not be tree shaked, thus requiring larger bundles. ISO 8601 is the most widely used set of string formats for dates and times. Default format Calling momentformat without a format will default to faultFormat. Daily news, features, set lists, reviews, charts, columns, audio, video, merchandise and more. Package.json should contain all dependencies listed in externals as dependencies, and not devDependencies or peerDependencies. The definitive resource for jambands (jam bands) and their fans, established in 1998.
Thus, I imagine my file to look like this: const path = require("path") Ĭonst. In my mind, the library should avoid including any external dependencies, since these risk being duplicated by the library user's application if they were to use the same dependencies. React should go into rollupOptions.external, since it requires a single React instance is run in the application. Oddly, it includes milliseconds, whereas Moment’s format () does not. I'm also wary of the final bundle size of the user's application. Moment provides a format () method that may be invoked without parameters: moment ().format () // T16:38:52-04:00 Luxon overrides the default toString () method to generate an ISO 8601 string. Let's say I'm building a library with a few dependencies: react, moment, lodash, and uuid, and I want to distribute this in both ES and UMD format.
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