esm.sh VS dayjs

Compare esm.sh vs dayjs and see what are their differences.

esm.sh

A fast, smart, & global CDN for modern(es2015+) web development. (by esm-dev)

dayjs

⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API (by iamkun)
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esm.sh dayjs
58 97
2,808 45,704
2.7% -
9.8 6.9
6 days ago 9 days ago
Go JavaScript
MIT License MIT License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

esm.sh

Posts with mentions or reviews of esm.sh. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-04-23.
  • Building a self-creating website with Supabase and AI
    6 projects | dev.to | 23 Apr 2024
    /* eslint-disable @typescript-eslint/ban-ts-comment */ // Follow this setup guide to integrate the Deno language server with your editor: // https://deno.land/manual/getting_started/setup_your_environment // This enables autocomplete, go to definition, etc. import { corsHeaders } from "../_shared/cors.ts"; import { createClient } from "https://esm.sh/@supabase/[email protected]"; import randomSample from "https://esm.sh/@stdlib/[email protected]"; import Replicate from "https://esm.sh/[email protected]"; import { base64 } from "https://cdn.jsdelivr.net/gh/hexagon/base64@1/src/base64.js"; const supabaseClient = createClient( Deno.env.get("SUPABASE_URL") ?? "", Deno.env.get("SUPABASE_SERVICE_ROLE_KEY") ?? "" ); const replicate = new Replicate({ auth: Deno.env.get("REPLICATE_API_TOKEN") ?? "", }); // @ts-expect-error Deno.serve(async (req) => { if (req.method === "OPTIONS") { return new Response("ok", { headers: corsHeaders }); } const { record } = await req.json(); const thought_id = record.id; if (!thought_id) { return new Response("Missing thought_id", { status: 400, headers: { "Content-Type": "application/json", ...corsHeaders }, }); } const allObjectIDsResponse = await fetch( "https://collectionapi.metmuseum.org/public/collection/v1/objects?departmentIds=11", { method: "GET", headers: { "Content-Type": "application/json", Accept: "application/json", }, } ); const { objectIDs } = await allObjectIDsResponse.json(); const listOfArtworks = []; const addedIDs: number[] = []; while (listOfArtworks.length < 80) { const randomObjectID = randomSample(objectIDs, { size: 1 })[0]; if (addedIDs.includes(randomObjectID)) continue; const res = await fetch( `https://collectionapi.metmuseum.org/public/collection/v1/objects/${randomObjectID}`, { method: "GET", headers: { "Content-Type": "application/json", Accept: "application/json", }, } ); const artwork = await res.json(); if (!artwork.primaryImageSmall) continue; addedIDs.push(artwork.objectID); listOfArtworks.push({ image_url: artwork.primaryImageSmall, artist_name: artwork.artistDisplayName, title: artwork.title, is_main: listOfArtworks.length === 0, is_variant: false, thought_id, }); } const mainImage = listOfArtworks[0]; const output = await replicate.run( "yorickvp/llava-13b:b5f6212d032508382d61ff00469ddda3e32fd8a0e75dc39d8a4191bb742157fb", { input: { image: mainImage.image_url, top_p: 1, prompt: "Describe this painting by " + mainImage.artist_name, max_tokens: 1024, temperature: 0.2, }, } ); const file = await fetch(mainImage.image_url).then((res) => res.blob()); const promises = []; for (let i = 0; i < 8; i++) { const body = new FormData(); body.append( "prompt", output.join("") + `, a painting by ${mainImage.artist_name}` ); body.append("output_format", "jpeg"); body.append("mode", "image-to-image"); body.append("image", file); body.append("strength", clamp(Math.random(), 0.4, 0.7)); const request = fetch( `${Deno.env.get( "STABLE_DIFFUSION_HOST" )}/v2beta/stable-image/generate/sd3`, { method: "POST", headers: { Accept: "application/json", Authorization: `Bearer ${Deno.env.get("STABLE_DIFFUSION_API_KEY")}`, }, body, } ); promises.push(request); } const results = await Promise.all(promises); const variants = await Promise.all(results.map((res) => res.json())); await supabaseClient.from("artworks").insert(listOfArtworks); for (let i = 0; i < variants.length; i++) { const variant = variants[i]; const randomId = Math.random(); await supabaseClient.storage .from("variants") .upload( `${thought_id}/${randomId}.jpeg`, base64.toArrayBuffer(variant.image), { contentType: "image/jpeg", } ); await supabaseClient.from("artworks").insert({ image_url: `${Deno.env.get( "SUPABASE_URL" )}/storage/v1/object/public/variants/${thought_id}/${randomId}.jpeg`, artist_name: mainImage.artist_name, is_main: false, is_variant: true, thought_id, }); } await supabaseClient .from("thoughts") .update({ generating: false }) .eq("id", thought_id); return new Response(JSON.stringify({ main: mainImage }), { headers: { "Content-Type": "application/json", ...corsHeaders }, }); }); function clamp(value: number, min: number, max: number) { return Math.min(Math.max(value, min), max); }
  • Bun 1.1
    17 projects | news.ycombinator.com | 1 Apr 2024
  • Show HN: Comma Separated Values (CSV) to Unicode Separated Values (USV)
    15 projects | news.ycombinator.com | 12 Mar 2024
    const extism = await import("https://esm.sh/@extism/extism");
  • JSR: The JavaScript Registry
    9 projects | news.ycombinator.com | 1 Mar 2024
    Unpkg serves whatever is published to NPM, and if it's a library intended for the browser, that often includes minified versions ready for use in script tags, for example, https://unpkg.com/[email protected]/mithril.min.js. Sometimes the default export is CJS (which has require() calls), in which case, you can usually use the browse url that I mentioned to see if there's another export you can use.

    https://esm.sh/ is definitely a good option too if you're OK with modules.

  • Deno Cron
    15 projects | news.ycombinator.com | 29 Nov 2023
    * Change my NPM imports to something that would work with Deno. The most straightforward thing to do was just change `import "foo"` to `import "npm:foo"`, but this felt hacky so eventually I used https://esm.sh, which worked for some packages but not others.
  • Esm.sh/Run
    1 project | news.ycombinator.com | 23 Nov 2023
  • Esm.sh run – 1KB script allows you to write JSX/TSX in HTML without build
    1 project | news.ycombinator.com | 23 Nov 2023
  • Supabase - allow user login with pin
    1 project | /r/Supabase | 12 Nov 2023
    import { createClient } from "https://esm.sh/@supabase/supabase-js@2"; import { create, Payload } from "https://deno.land/x/[email protected]/mod.ts"; interface User { username: string; pin: string; } const supabase = createClient(Deno.env.get('SUPABASE_URL'), Deno.env.get('SUPABASE_SERVICE_ROLE_KEY')); const handler = async (req: Request): Promise => { if (req.method !== 'POST') { return new Response(null, { status: 405 }); } const { username, pin } = await req.json() as Vehicle; if (!username|| !pin) { return new Response(JSON.stringify({ error: 'username and PIN are required' }), { status: 400 }); } const { data, error } = await supabase .from('users') .select('*') .eq('username', username) .eq('pin', pin) .single(); if (error || !data) { return new Response(JSON.stringify({ valid: false }), { status: 401 }); } const jwtSecret = Deno.env.get('JWT_SECRET') as string;; const payload: Payload = { "username": username }; try { const token = await create({ alg: "HS256", typ: "JWT" }, payload, jwtSecret); // This line has the error console.log(token); return new Response(JSON.stringify({ token }), { status: 200 }); } catch (error) { console.error('Error creating JWT:', error); return new Response(JSON.stringify({ error: 'Error creating JWT' }), { status: 500 }); } }; Deno.serve(handler);
  • Let's optimize dependency management with URL Imports
    3 projects | dev.to | 13 Oct 2023
    Easily serve libraries from local server/private VPS: You can try to serve and cache libraries by running esm.sh to improve loading times on your server side. Or to keep things simple, just upload a code to pastebin or similar services and directly use it here!
  • Building a Slack Bot for AI-Powered Conversations with Supabase
    2 projects | dev.to | 10 Oct 2023
    import { serve } from 'https://deno.land/[email protected]/http/server.ts'; import { WebClient } from 'https://deno.land/x/[email protected]/mod.js'; import { SupabaseClient } from 'https://esm.sh/@supabase/supabase-js@2'; const slack_bot_token = Deno.env.get("SLACK_TOKEN") ?? ""; const bot_client = new WebClient(slack_bot_token); const supabase_url = Deno.env.get("SUPABASE_URL") ?? ""; const service_role = Deno.env.get("SUPABASE_SERVICE_ROLE_KEY"); const supabase = new SupabaseClient(supabase_url, service_role); console.log(`Slack URL verification function up and running!`); serve(async (req) => { try { const req_body = await req.json(); console.log(JSON.stringify(req_body, null, 2)); const { token, challenge, type, event } = req_body; if (type == 'url_verification') { return new Response(JSON.stringify({ challenge }), { headers: { 'Content-Type': 'application/json' }, status: 200, }); } else if (event.type == 'app_mention') { const { user, text, channel, ts } = event; const url_path = text.toLowerCase() .includes('code') ? '/code' : '/general'; const { error } = await supabase.from('job_queue').insert({ http_verb: 'POST', payload: { user, text, channel, ts }, url_path: url_path }); if (error) { console.error(error); return new Response(JSON.stringify({ error: error.message }), { headers: { 'Content-Type': 'application/json' }, status: 400, }); } await post(channel, ts, `Taking a look and will get back to you shortly!`); return new Response('', { status: 200 }); } } catch (error) { return new Response(JSON.stringify({ error: error.message }), { headers: { 'Content-Type': 'application/json' }, status: 400, }); } }); async function post(channel: string, thread_ts: string, message: string): Promise { try { const result = await bot_client.chat.postMessage({ channel: channel, thread_ts: thread_ts, text: message, }); console.info(result); } catch (e) { console.error(`Error posting message: ${e}`); } }

dayjs

Posts with mentions or reviews of dayjs. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-04-12.
  • The Day.js Dilemma: How Should We Handle OSS Maintainers Going MIA?
    2 projects | news.ycombinator.com | 12 Apr 2024
    As web developers, we heavily rely OSS packages. One popular example is Day.js, a JS lib for parsing, validating, manipulating, and formatting dates. It's a widely-used alternative to Moment, with over 17mil weekly downloads on npm.

    A critical bug was discovered in Day.js (see: https://github.com/iamkun/dayjs/pull/2118) causing incorrect date manipulation (add, subtract) when in UTC TZ. This could have severe implications for any project relying on Day.js for date-related functionality. However, the maintainer of the project appears to be unresponsive, leaving the bug unresolved and the future of the library uncertain.

    This raises some important questions for our community:

    - At what point should we consider a widely-used OSS project "abandoned" if the maintainer is unresponsive?

    - Is forking the project the best solution, or should we first try to reach out to the maintainer through other channels?

    - Are there established community guidelines around responsiveness expectations for widely-used OSS projects?

    - What are successful examples of community-driven forks or maintenance after a maintainer stepped away?

    I am very aware that many of these developers give their spare time for free for these projects, with little or no payment, and I am very thankful for all their work. This developer does get some money (a small amount?) through OpenCollective, and possibly also works for a company (in China?) that makes a UI library, which I think uses Day.js internally.

  • JavaScript Libraries That You Should Know
    8 projects | dev.to | 19 Mar 2024
    11. DayJs
  • Best date library to handle timezones in React Native?
    3 projects | /r/reactnative | 5 Dec 2023
    DayJS has issues with its timezone plugin not compatible with Hermes engine https://github.com/iamkun/dayjs/issues/1942
  • Everything you need to know about Date in Programming
    2 projects | dev.to | 28 Oct 2023
    Date.js
  • Complete Tutorial: React Admin Panel with refine and daisyUI
    5 projects | dev.to | 24 Oct 2023
    We have to install refine's support packages for React Table and React Hook Form. We are using Tailwind Heroicons for our icons, the Day.js library for time calculations and Recharts library to plot our charts for KPI data. So, run the following and we are good to go:
  • Managify: Manage Your Teams Easily
    6 projects | dev.to | 20 Jul 2023
    DayJS is a lightweight and fast JavaScript library for manipulating dates and times. It offers a moment.js-like API but with a much smaller footprint.
  • is there a date calculate script/libary ?
    2 projects | /r/learnjavascript | 11 Jul 2023
  • What library do you use to handle dates?
    2 projects | /r/learnjavascript | 9 Jun 2023
    I use Day.js in my projects.
  • Flash News App React Native (Expo^)
    3 projects | /r/reactnative | 5 Jun 2023
    well, I haven't reviewed the code, I just checked package.json and I'll suggest you to ditch moment.js Even the creator recommends ditching it. dayjs is a fantastic alternative.
  • How to show "Today/Tomorrow" or date using javascript?
    1 project | /r/Frontend | 19 May 2023

What are some alternatives?

When comparing esm.sh and dayjs you can also consider the following projects:

import-maps - How to control the behavior of JavaScript imports

Luxon - ⏱ A library for working with dates and times in JS

jsdelivr - A free, fast, and reliable Open Source CDN for npm, GitHub, Javascript, and ESM

date-fns - ⏳ Modern JavaScript date utility library ⌛️

deno - A modern runtime for JavaScript and TypeScript.

moment - Parse, validate, manipulate, and display dates in javascript.

esbuild - An extremely fast bundler for the web

moment-timezone - Timezone support for moment.js

eleventy-high-performance-blog - A high performance blog template for the 11ty static site generator.

countdown.js - Super simple countdowns.

fast-base64 - Fastest base64 on the web, with Wasm + SIMD

proposal-temporal - Provides standard objects and functions for working with dates and times.