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1000+ packages found

A tiny invariant function

published version 1.3.3, a year ago7792 dependents licensed under $MIT
81,255,092

invariant

published version 2.2.4, 7 years ago5870 dependents licensed under $MIT
77,065,721

A mirror of Facebook's Warning

published version 4.0.3, 6 years ago3066 dependents licensed under $MIT
42,170,727

flow typed nullthrows

published version 1.1.1, 6 years ago824 dependents licensed under $MIT
26,387,696

Type-safe implementation of invariant with positionals.

published version 1.4.3, a year ago57 dependents licensed under $MIT
22,391,800

TypeScript implementation of invariant(condition, message)

published version 0.10.3, 3 years ago253 dependents licensed under $MIT
20,300,368

invariantx

published version 4.0.2, 3 years ago11 dependents licensed under $MIT
9,012,627

turf invariant module

published version 7.2.0, 5 months ago167 dependents licensed under $MIT
15,458,139

Warning and invariant dev-ex messaging.

published version 1.0.8, 6 years ago221 dependents licensed under $MIT
8,287,809

Precondition checking utilities.

published version 0.2.3, 11 years ago41 dependents
3,252,929

Yet another JavaScript assertion/invariant library.

published version 1.0.2, 6 years ago2 dependents licensed under $MIT
698,149

Super-simple invariant function

published version 2.0.1, 4 years ago20 dependents licensed under $MIT
240,759

Stricter version of tiny-invariant

published version 2.0.5, 2 years ago13 dependents licensed under $MIT
124,054

[![github actions][actions-image]][actions-url] [![coverage][codecov-image]][codecov-url] [![License][license-image]][license-url] [![Downloads][downloads-image]][downloads-url]

published version 10.13.142, 7 months ago0 dependents licensed under $MIT
43,689

Invariant and non-null/undefined assertion check with type guards

published version 0.3.4, 4 years ago32 dependents licensed under $ISC
38,932

[![github actions][actions-image]][actions-url] [![coverage][codecov-image]][codecov-url] [![dependency status][deps-svg]][deps-url] [![dev dependency status][dev-deps-svg]][dev-deps-url] [![License][license-image]][license-url] [![Downloads][downloads-im

published version 3.5.94, 10 months ago0 dependents licensed under $MIT
27,154

React components for [Stripe.js and Elements](https://stripe.com/docs/stripe-js).

published version 7.6.72, 10 months ago0 dependents licensed under $MIT
21,363

[![github actions][actions-image]][actions-url] [![coverage][codecov-image]][codecov-url] [![dependency status][deps-svg]][deps-url] [![dev dependency status][dev-deps-svg]][dev-deps-url] [![License][license-image]][license-url] [![Downloads][downloads-im

published version 5.8.60, 10 months ago0 dependents licensed under $MIT
18,353

Allows for programming with assertions/invariant-based programming during development without slowing down production.

published version 1.3.2, 9 months ago3 dependents licensed under $BSD-3-Clause
7,803

Declarative errors throwing for Node.js

published version 1.2.0, 6 years ago1 dependents licensed under $MIT
5,433