We address it in our usage guidance but it still comes as a surprise to most new users.Ĭhanging Moment to be immutable would be a breaking change for every one of the projects that use it.Ĭreating a "Moment v3" that was immutable would be a tremendous undertaking and would make Moment a different library entirely. This is a common source of complaints about Moment. Given how many projects depend on it, we choose to prioritize stability over new features.Īs an example, consider that Moment objects are mutable. Moment has evolved somewhat over the years, but it has essentially the same design as it did when it was created in 2011. The modern web looks much different these days. With a nationwide staff, we’ve got consultants in key markets across the United States, including San Francisco, Los Angeles, Denver, Chicago, Austin, New York, and has been successfully used in millions of projects, and we are happy to have contributed to making date and time better on the web.Īs of September 2020, Moment gets over 12 million downloads per week! However, Moment was built for the previous era of the JavaScript ecosystem. We provide exceptional professional services in strategy, user experience, design, and full stack engineering using Ember.js, React.js, Ruby, and Elixir. And, if you’re looking for a more granular resource, You-Dont-Need-Momentjs offers phenomenal insights on the world of dates and how it relates to Moment.js and the general ecosystem.ĭockYard is a digital product agency offering custom software, mobile, and web application development consulting. However, clarity and performance enhancements can bring your software piles of unspoken “thank yous” from your future team members and users. Most of the work needed will be more verbose and likely need a greater suite of tests. I hope my rambling serves as future documentation as you refactor and tackle new features involving Dates and Times. It supports timezones as well! Wrapping up luxon is also recommended by the Moment.js maintainers. Date Librariesĭate-fns is one of the best lightweight libraries if you do a lot of formatting but don’t need timezones. NumberFormat ( locale, humanReadableDate ( new Date ( ) ) // 'Updated Today'Īs with a lot of APIs, you do have options for a polyfill. Let’s just see what it looks like at it’s most basic level.Ĭonst nonPaddedIntl = Intl. It could even be this blog post’s published at time! Suppose you want to show an ordinal time like Februat 1AM for users in the East Coast, but February 18th, 2019 at 10PM for users in the West Coast. This Date method might be your most useful API to reach for and the simplest to display a localized Date string. Here are some primitives we will be looking into:Įxamples Ordinal Time with toLocaleDateString However, if you are working with dates like, displaying localized dates and avoiding pitfalls of Javascript’s Date constructor becomes much harder. If your server provides ISO 8601 dates, you are in luck.When testing out your solutions, it is always good to test languages like Korean and Arabic to make sure you logic will work.For example, ko (Korean) Meridien time (AM/PM) shows up at the start of the time result, whereas in English, the Meridien time shows up at the end. Things are not as easy as they seem, especially if you plan on manually parsing the output from the native APIs.You do not need Moment.js if you support newer browsers and if you show dates or datetimes only in your user’s timezone.If you also can remove moment-timezone, your savings will be even greater. By cutting 30kb off our JS bundle, we can deliver and parse the payload faster so users can start interacting with our application sooner.
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