#REACT19

Live, measured metrics for the hashtag #REACT19 from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.

hashtag.org network · sponsored

Own #react19

This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.

$240.06/ year · 7-character #name
Claim #react19 — $240.06/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
0
Uses / 7 days
Mastodon
0
Accounts / 7 days
Mastodon
15
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 15
0
Avg reactions / post
Mastodon · last 15
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mas.to (Mastodon public tags API) · fetched 2026-09-17 17:33 UTC
0
09-11
0
09-12
0
09-13
0
09-14
0
09-15
0
09-16
0
09-17

0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.

Related hashtags

measured · mas.to (Mastodon public search API) · fetched 2026-09-17 17:33 UTC
#react_19
0 uses · 0 accounts / 7d

Live pulse

measured · mas.to (Mastodon tag timeline) · fetched 2026-09-17 17:33 UTC

Everything below is measured over the latest 15 public posts (spanning ~9610 hours).

Posting hours (UTC) — busiest: 03:00

00:0012:0023:00

Languages: English (15)

Avg boosts / post: 0.3

Top of the latest posts

  • React 19: What’s New and Why It Matters https://www.indianperson.com/uncategorised/react-19-whats-new-and-why-it-matters/ React 19 introduces powerful new features and improvements that enhance performance, developer experience, and app cap

    Tuvoc Technologies@[email protected]♥ 0↻ 02025-06-04 05:58 UTCView post →

  • #nextjs devs, Since nextjs redirect can't be used inside `try/catch` block, How do you handle the redirections in server actions? Especially when you don't want to handle `| undefined` in the return type of function in #TypeScript. As of no

    Revath S Kumar :javascript:@[email protected]♥ 0↻ 12025-03-18 12:01 UTCView post →

  • Support for Preloading Resources in React 19 ! Soporte Para Precargar Recursos en React 19 ! 👉 https://nubecolectiva.com/comunidad/flyers-e-imagenes-de-programacion/ #programming #coding #desarrolloweb #devs #softwaredevelopment #react19 #

    Nube Colectiva@[email protected]♥ 0↻ 02025-03-07 23:34 UTCView post →

What “react19” means

Wiktionary

react/ɹiːˈækt/

  • nounAn emoji used to express a reaction to a post on social media.
  • verbTo act or perform a second time; to do over again; to reenact.
Full entry on Wiktionary →

#react19 across platforms

every network with a public tag surface

Follow #react19 straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.

X (Twitter) ↗Instagram ↗TikTok ↗Facebook ↗LinkedIn ↗YouTube ↗Threads ↗Bluesky ↗Mastodon ↗Reddit ↗Pinterest ↗Tumblr ↗

Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/react19