{"id":20963843,"url":"https://github.com/codemix/obligations","last_synced_at":"2025-05-14T09:31:39.357Z","repository":{"id":16253122,"uuid":"19001053","full_name":"codemix/obligations","owner":"codemix","description":"Tiny JavaScript library for preconditions and postconditions, intended for use with Contractual.","archived":false,"fork":false,"pushed_at":"2014-04-28T21:39:09.000Z","size":148,"stargazers_count":5,"open_issues_count":0,"forks_count":0,"subscribers_count":3,"default_branch":"master","last_synced_at":"2025-05-06T00:37:28.429Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"JavaScript","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/codemix.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE.md","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null}},"created_at":"2014-04-21T17:49:08.000Z","updated_at":"2025-02-18T11:27:56.000Z","dependencies_parsed_at":"2022-07-12T15:14:18.052Z","dependency_job_id":null,"html_url":"https://github.com/codemix/obligations","commit_stats":null,"previous_names":[],"tags_count":2,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/codemix%2Fobligations","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/codemix%2Fobligations/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/codemix%2Fobligations/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/codemix%2Fobligations/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/codemix","download_url":"https://codeload.github.com/codemix/obligations/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":254112259,"owners_count":22016721,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2024-11-19T02:48:35.097Z","updated_at":"2025-05-14T09:31:34.324Z","avatar_url":"https://github.com/codemix.png","language":"JavaScript","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Obligations\n\n[![Build Status](https://travis-ci.org/codemix/obligations.svg?branch=master)](https://travis-ci.org/codemix/obligations)\n\n\nTiny JavaScript library for [preconditions](http://en.wikipedia.org/wiki/Precondition), [postconditions](http://en.wikipedia.org/wiki/Postcondition) and [invariants](http://en.wikipedia.org/wiki/Invariant_\\(computer_science\\)), intended for use with [Contractual](https://github.com/codemix/contractual).\n\n\n## Installation\n\n```\nnpm install obligations\n```\n\n## Usage\n\n```js\nvar obligations = require('obligations');\n\nobligations.precondition(1 \u003e 0); // always ok\nobligations.precondition(false); // throws a PreconditionError\nobligations.precondition(0 \u003e 1, \"The world has ended!\"); // throws a PreconditionError with a custom message\n\n\nobligations.postcondition(1 \u003e 0); // always ok\nobligations.postcondition(false); // throws a PostconditionError\nobligations.postcondition(0 \u003e 1, \"The world has ended!\"); // throws a PostconditionError with a custom message\n\nobligations.invariant(1 \u003e 0); // always ok\nobligations.invariant(false); // throws an InvariantError\nobligations.invariant(0 \u003e 1, \"The world has ended!\"); // throws a InvariantError with a custom message\n\n```\n\n\n## License\n\nMIT, see [LICENSE.md](./LICENSE.md).\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcodemix%2Fobligations","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fcodemix%2Fobligations","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fcodemix%2Fobligations/lists"}