{"id":5328149,"name":"is-error-instance","ecosystem":"npm","description":"Check if a value is an `Error` instance","homepage":"https://www.github.com/ehmicky/is-error-instance","licenses":"MIT","normalized_licenses":["MIT"],"repository_url":"https://github.com/ehmicky/is-error-instance","keywords_array":["browser","cross-realm","dom","error","error-handle","error-handler","error-handlers","error-handling","error-monitoring","error-reporting","errors","exception","exception-handling","instanceof","javascript","library","monitoring","nodejs","testing","typescript"],"namespace":null,"versions_count":11,"first_release_published_at":"2022-10-13T14:44:19.709Z","latest_release_published_at":"2025-03-29T02:32:56.256Z","latest_release_number":"3.0.1","last_synced_at":"2026-10-03T07:39:14.462Z","created_at":"2022-10-16T00:49:32.917Z","updated_at":"2026-10-03T07:39:14.463Z","registry_url":"https://www.npmjs.com/package/is-error-instance","install_command":"npm install is-error-instance","documentation_url":null,"metadata":{"funding":null,"dist-tags":{"latest":"3.0.1"},"contentPolicy":null},"repo_metadata":{"id":61517827,"uuid":"550891028","full_name":"ehmicky/is-error-instance","owner":"ehmicky","description":"Check if a value is an `Error` instance.","archived":false,"fork":false,"pushed_at":"2026-09-29T15:25:24.000Z","size":5375,"stargazers_count":4,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"main","last_synced_at":"2026-10-02T23:04:09.550Z","etag":null,"topics":["browser","cross-realm","dom","error","error-handle","error-handler","error-handlers","error-handling","error-monitoring","error-reporting","errors","exception","exception-handling","instanceof","javascript","library","monitoring","nodejs","testing","typescript"],"latest_commit_sha":null,"homepage":"","language":"TypeScript","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/ehmicky.png","metadata":{"files":{"readme":"README.md","changelog":"CHANGELOG.md","contributing":"CONTRIBUTING.md","funding":null,"license":"LICENSE","code_of_conduct":"CODE_OF_CONDUCT.md","threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null,"notice":null,"maintainers":null,"copyright":null,"agents":null,"dco":null,"cla":null}},"created_at":"2022-10-13T13:48:53.000Z","updated_at":"2026-09-29T15:28:45.000Z","dependencies_parsed_at":"2023-02-07T12:16:31.982Z","dependency_job_id":"ce1a54e2-3efe-4bd5-82a8-81051565ec37","html_url":"https://github.com/ehmicky/is-error-instance","commit_stats":{"total_commits":193,"total_committers":3,"mean_commits":64.33333333333333,"dds":"0.025906735751295318","last_synced_commit":"c136a4c3429b2dfdf5e338caecd7617d8b3075e7"},"previous_names":[],"tags_count":10,"template":false,"template_full_name":"ehmicky/template-javascript","purl":"pkg:github/ehmicky/is-error-instance","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/ehmicky","download_url":"https://codeload.github.com/ehmicky/is-error-instance/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":343072799,"owners_count":37964902,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-08-22T15:14:58.755Z","status":"online","status_checked_at":"2026-10-03T02:00:07.567Z","response_time":59,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"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"},"owner_record":{"login":"ehmicky","name":"ehmicky","uuid":"8136211","kind":"user","description":"Node.js back-end developer\r\n","email":"","website":"https://fosstodon.org/@ehmicky","location":"Remote","twitter":null,"company":null,"icon_url":"https://avatars.githubusercontent.com/u/8136211?u=4aa44e4c8b7383e7772a690b13f24e2c92fed719\u0026v=4","repositories_count":95,"last_synced_at":"2026-10-02T15:22:28.735Z","metadata":{"has_sponsors_listing":false,"funding":null},"html_url":"https://github.com/ehmicky","funding_links":[],"total_stars":6834,"followers":446,"following":0,"created_at":"2022-11-02T16:20:33.623Z","updated_at":"2026-10-02T15:22:29.078Z","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/ehmicky","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/ehmicky/repositories"},"tags":[{"name":"3.0.1","sha":"0df661337c2d7874ca6fc1b3544a5816588780cc","kind":"tag","published_at":"2025-03-23T18:12:43.000Z","download_url":"https://codeload.github.com/ehmicky/is-error-instance/tar.gz/3.0.1","html_url":"https://github.com/ehmicky/is-error-instance/releases/tag/3.0.1","dependencies_parsed_at":null,"dependency_job_id":null,"purl":"pkg:github/ehmicky/is-error-instance@3.0.1","tag_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/tags/3.0.1","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/tags/3.0.1/manifests"},{"name":"3.0.0","sha":"95ce3fad6198ebfe48dc0f452cace933a7bf44ed","kind":"tag","published_at":"2023-10-22T18:54:39.000Z","download_url":"https://codeload.github.com/ehmicky/is-error-instance/tar.gz/3.0.0","html_url":"https://github.com/ehmicky/is-error-instance/releases/tag/3.0.0","dependencies_parsed_at":null,"dependency_job_id":null,"purl":"pkg:github/ehmicky/is-error-instance@3.0.0","tag_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/tags/3.0.0","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/tags/3.0.0/manifests"},{"name":"2.0.0","sha":"3b0efba7d1c2c458731da589c66c0b312b81e78a","kind":"tag","published_at":"2023-05-07T19:01:07.000Z","download_url":"https://codeload.github.com/ehmicky/is-error-instance/tar.gz/2.0.0","html_url":"https://github.com/ehmicky/is-error-instance/releases/tag/2.0.0","dependencies_parsed_at":null,"dependency_job_id":null,"purl":"pkg:github/ehmicky/is-error-instance@2.0.0","tag_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/tags/2.0.0","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/tags/2.0.0/manifests"},{"name":"1.5.0","sha":"7fb651295af108dc3486ea4b5897df9a33965c60","kind":"tag","published_at":"2022-12-11T22:45:30.000Z","download_url":"https://codeload.github.com/ehmicky/is-error-instance/tar.gz/1.5.0","html_url":"https://github.com/ehmicky/is-error-instance/releases/tag/1.5.0","dependencies_parsed_at":null,"dependency_job_id":null,"purl":"pkg:github/ehmicky/is-error-instance@1.5.0","tag_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/tags/1.5.0","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/tags/1.5.0/manifests"},{"name":"1.6.0","sha":"cd214d066256324b9828d601ae0de1da8e01efc8","kind":"tag","published_at":"2022-12-11T18:28:21.000Z","download_url":"https://codeload.github.com/ehmicky/is-error-instance/tar.gz/1.6.0","html_url":"https://github.com/ehmicky/is-error-instance/releases/tag/1.6.0","dependencies_parsed_at":null,"dependency_job_id":null,"purl":"pkg:github/ehmicky/is-error-instance@1.6.0","tag_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/tags/1.6.0","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/tags/1.6.0/manifests"},{"name":"1.4.0","sha":"7124893dd005c80eb9acb224f09b693de4aa746e","kind":"tag","published_at":"2022-12-04T18:34:31.000Z","download_url":"https://codeload.github.com/ehmicky/is-error-instance/tar.gz/1.4.0","html_url":"https://github.com/ehmicky/is-error-instance/releases/tag/1.4.0","dependencies_parsed_at":null,"dependency_job_id":null,"purl":"pkg:github/ehmicky/is-error-instance@1.4.0","tag_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/tags/1.4.0","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/tags/1.4.0/manifests"},{"name":"1.2.0","sha":"620397e4488022c4c257cd1d8632bcc68cc010b2","kind":"tag","published_at":"2022-11-06T22:55:26.000Z","download_url":"https://codeload.github.com/ehmicky/is-error-instance/tar.gz/1.2.0","html_url":"https://github.com/ehmicky/is-error-instance/releases/tag/1.2.0","dependencies_parsed_at":null,"dependency_job_id":null,"purl":"pkg:github/ehmicky/is-error-instance@1.2.0","tag_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/tags/1.2.0","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/tags/1.2.0/manifests"},{"name":"1.3.0","sha":"f226c3dda49b6e5060878caa0ce8185d7770a31e","kind":"tag","published_at":"2022-11-06T16:36:53.000Z","download_url":"https://codeload.github.com/ehmicky/is-error-instance/tar.gz/1.3.0","html_url":"https://github.com/ehmicky/is-error-instance/releases/tag/1.3.0","dependencies_parsed_at":null,"dependency_job_id":null,"purl":"pkg:github/ehmicky/is-error-instance@1.3.0","tag_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/tags/1.3.0","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/tags/1.3.0/manifests"},{"name":"1.1.0","sha":"d48d69e9fa6039dd9d0323dfe4dcfbc96409381b","kind":"tag","published_at":"2022-10-09T13:30:05.000Z","download_url":"https://codeload.github.com/ehmicky/is-error-instance/tar.gz/1.1.0","html_url":"https://github.com/ehmicky/is-error-instance/releases/tag/1.1.0","dependencies_parsed_at":null,"dependency_job_id":null,"purl":"pkg:github/ehmicky/is-error-instance@1.1.0","tag_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/tags/1.1.0","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/tags/1.1.0/manifests"},{"name":"1.0.0","sha":"e6d09368b3e515875c72fb42b24e64f1209b6599","kind":"tag","published_at":"2022-10-09T13:23:45.000Z","download_url":"https://codeload.github.com/ehmicky/is-error-instance/tar.gz/1.0.0","html_url":"https://github.com/ehmicky/is-error-instance/releases/tag/1.0.0","dependencies_parsed_at":null,"dependency_job_id":null,"purl":"pkg:github/ehmicky/is-error-instance@1.0.0","tag_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/tags/1.0.0","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/tags/1.0.0/manifests"}]},"repo_metadata_updated_at":"2026-10-03T07:36:34.170Z","dependent_packages_count":13,"downloads":675019,"downloads_period":"last-month","dependent_repos_count":19,"rankings":{"downloads":1.030195241972101,"dependent_repos_count":2.806455751331022,"dependent_packages_count":1.6755095713259178,"stargazers_count":12.233459334673533,"forks_count":15.43149453300609,"docker_downloads_count":null,"average":6.635422886461733},"purl":"pkg:npm/is-error-instance","advisories":[],"docker_usage_url":"https://docker.ecosyste.ms/usage/npm/is-error-instance","docker_dependents_count":1,"docker_downloads_count":45,"usage_url":"https://repos.ecosyste.ms/usage/npm/is-error-instance","dependent_repositories_url":"https://repos.ecosyste.ms/api/v1/usage/npm/is-error-instance/dependencies","status":null,"funding_links":[],"critical":null,"issue_metadata":{"last_synced_at":"2026-09-29T09:00:50.616Z","issues_count":0,"pull_requests_count":23,"avg_time_to_close_issue":null,"avg_time_to_close_pull_request":55586.34782608696,"issues_closed_count":0,"pull_requests_closed_count":23,"pull_request_authors_count":1,"issue_authors_count":0,"avg_comments_per_issue":null,"avg_comments_per_pull_request":0.34782608695652173,"merged_pull_requests_count":18,"bot_issues_count":0,"bot_pull_requests_count":23,"past_year_issues_count":0,"past_year_pull_requests_count":9,"past_year_avg_time_to_close_issue":null,"past_year_avg_time_to_close_pull_request":25476.11111111111,"past_year_issues_closed_count":0,"past_year_pull_requests_closed_count":9,"past_year_pull_request_authors_count":1,"past_year_issue_authors_count":0,"past_year_avg_comments_per_issue":null,"past_year_avg_comments_per_pull_request":0.0,"past_year_bot_issues_count":0,"past_year_bot_pull_requests_count":9,"past_year_merged_pull_requests_count":9,"issues_url":"https://issues.ecosyste.ms/api/v1/hosts/GitHub/repositories/ehmicky%2Fis-error-instance/issues","maintainers":[],"active_maintainers":[]},"versions_url":"https://packages.ecosyste.ms/api/v1/registries/npmjs.org/packages/is-error-instance/versions","version_numbers_url":"https://packages.ecosyste.ms/api/v1/registries/npmjs.org/packages/is-error-instance/version_numbers","latest_version_url":"https://packages.ecosyste.ms/api/v1/registries/npmjs.org/packages/is-error-instance/latest_version","dependent_packages_url":"https://packages.ecosyste.ms/api/v1/registries/npmjs.org/packages/is-error-instance/dependent_packages","related_packages_url":"https://packages.ecosyste.ms/api/v1/registries/npmjs.org/packages/is-error-instance/related_packages","codemeta_url":"https://packages.ecosyste.ms/api/v1/registries/npmjs.org/packages/is-error-instance/codemeta","maintainers":[{"uuid":"ehmicky","login":"ehmicky","name":null,"email":"ehmicky@gmail.com","url":null,"packages_count":90,"html_url":"https://www.npmjs.com/~ehmicky","role":null,"created_at":"2022-11-20T06:00:39.165Z","updated_at":"2022-11-20T06:00:39.165Z","packages_url":"https://packages.ecosyste.ms/api/v1/registries/npmjs.org/maintainers/ehmicky/packages"}]}