JSPM

TypeScript implementation of invariant(condition, message)

Precondition checking utilities.

Preconditions utility for TypeScript and JavaScript.

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

Preconditions for safe coding

For safe coding

Middleware for HTTP Conditional Requests (RFC 7232)

Fast and boilerplate-free precondition checks for javascript.

Design-by-Contract and Test-by-Contract for JavaScript

Runtime guard utility for validating inputs and enforcing preconditions.

A library with convenient checks for preconditions and more.

Design-by-Contract and Test-by-Contract for JavaScript

Code Contracts for TypeScript and ECMAScript classes

Tiny JavaScript library for preconditions, postconditions and invariants, intended for use with Contractual.

Design-by-Contract and Test-by-Contract for JavaScript

Design-by-Contract and Test-by-Contract for JavaScript

Design by Contract (precondition/postcondition) class method decorators for ECMAScript.

Test usage of toryt/contracts as an npm module.

Middleware for HTTP Conditional Requests (RFC 7232)

Karma adapter (framework) for jasmine-precondition

Preconditions library

Design by contract javascript library

A Jasmine instruction to ease setting up asynchronous pre-conditions before, during and after tests

Design by contract javascript library