#assertions
Live, measured metrics for the hashtag #assertions from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #assertions
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.
Day-by-day usage
measured · mastodon.online (Mastodon public tags API) · fetched 2026-09-11 16:46 UTC0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · mastodon.online (Mastodon public search API) · fetched 2026-09-11 16:46 UTCLive pulse
measured · mastodon.online (Mastodon tag timeline) · fetched 2026-09-11 16:46 UTCEverything below is measured over the latest 37 public posts (spanning ~32976 hours).
Posting hours (UTC) — busiest: 23:00
Languages: English (30) · French (6) · German (1)
Avg boosts / post: 0.4
Top of the latest posts
One of the many good uses of assertions is to catch cases that Should Never Happen. The textbook example is the last branch of a multi-way conditional statement where one of the conditions before the final "else" must always be true. Anothe
If you're serious about #objectOriented programming, try to use #DesignByContract to the fullest extent your language supports it. Your future debugging self will thank you. At the very least, liberally use #assertions throughout your code
Our next #JCON2026 session is live: 'Better #Assertions with #AssertJ' with @timtebeek Not all #testing libraries are equal. Sure they all run your tests, but what happens when they #fail? “Expected ‘true’, was ‘false’” won’t help you … Gra
What “assertions” means
Wiktionary#assertions across platforms
every network with a public tag surfaceFollow #assertions 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.
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/assertions