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Assert icons

5 icons carry the tag assert, across Developer Tools and Data Engineering. Assert fail, Assert pass, Assertion failed and 2 more — each in outline and duotone at three weights, with the code for React, Vue, Svelte, Flutter and more.

The 5 assert icons, described

Assert failassert-fail
An X held between brackets — an assertion in the code that failed its check.
Assert passassert-pass
A check held between brackets — an assertion in the code that held true.
Assertion failedassertion-fail
The flask with a cross in it — the check that came out wrong.
Expectationexpectation
An expectation — the rule the data has to keep, a contract asserted on every load.
Invariantinvariant
Two equal lines held between brackets — an invariant that must stay true throughout.

In code, each is one import — import { AssertFail } from "@iconmind/react/icons/assert-fail" — and the same name in Vue, Svelte, Solid, Preact, React Native, Astro, Blade and Flutter.

Tags these icons also carry

Every assert icon, free to ship

5 of 5,287 icons compiled from one grid — outline and duotone, three weights, every cell generated rather than redrawn. MIT licensed: commercial use, no attribution, no seat count.