is-callback-function 1.0.1
Returns true if function is a callback. Checks its name is one of [common-callback-names][] - callback, cb, cb_, callback_, next, done, they can be customized, these are default.
is-callback-function@1.0.1 was published on 2016-05-09. Its manifest declares 3 runtime dependencies and 0 peer requirements. Bundled type declarations are not declared in the inspected metadata. No Node.js engine requirement is declared in this manifest.
All is-callback-function versions · Permanent reference to 1.0.1 · Latest release
Package specifications
| Version | 1.0.1 |
|---|---|
| License declaration | MIT |
| Published | 2016-05-09T05:36:58.532Z |
| Node.js requirement | Not declared |
| Type declarations | Not declared |
| Runtime dependency count | 3 |
| Peer requirement count | 0 |
| Optional dependency count | 0 |
| Minified size | Measurement not available yet |
| Minified + gzip | Measurement not available yet |
| Unpacked distribution size | Not supplied |
| Published file count | Not supplied |
| Package type | Not declared |
| ES module entry | Not declared |
| Default entry | index.js |
| Side effects declaration | Not declared |
| Direct advisories | 0 |
| Resolved graph dependencies | 4 |
| Repository stars | 4 |
| Repository forks | 0 |
Install is-callback-function 1.0.1
npm install is-callback-function@1.0.1 pnpm add is-callback-function@1.0.1 yarn add is-callback-function@1.0.1
Runtime dependencies
- common-callback-names ^1.0.1
- get-fn-name ^1.0.0
- in-array ^0.1.0
Peer requirements
- None declared
Optional dependencies
- None declared
Resolved dependency graph
This deps.dev graph describes a generic 64-bit Linux environment, not your application lockfile.
- common-callback-names@1.0.2 — direct
- fn-name@2.0.1 — indirect
- get-fn-name@1.0.0 — direct
- in-array@0.1.2 — direct
How to interpret the specifications
Bundlephobia measurements use its standard package build and may exclude peer dependencies. Unpacked npm distribution size includes shipped files and is a different measurement. Module declarations do not prove tree-shaking or runtime compatibility.
Advisories apply to this package version directly; transitive dependencies need separate inspection. Repository signals describe the whole repository and are current observations, including on historical-version pages.
OpenSSF repository checks
Provider assessment: 2026-08-24T00:00:00Z. These are repository checks, not a jsL maintenance score.
| SAST | 0/10 — no SAST tool detected |
|---|---|
| Code-Review | 0/10 — Found 0/14 approved changesets -- score normalized to 0 |
| Binary-Artifacts | 10/10 — no binaries found in the repo |
| Maintained | 0/10 — 0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0 |
| CII-Best-Practices | 0/10 — no effort to earn an OpenSSF best practices badge detected |
| Fuzzing | 0/10 — project is not fuzzed |
| License | 10/10 — license file detected |
| Branch-Protection | 0/10 — branch protection not enabled on development/release branches |
| Security-Policy | 10/10 — security policy file detected |
Evidence and freshness
- https://registry.npmjs.org/is-callback-function/1.0.1 — retrieved 2026-10-29T23:28:42.783Z
- https://api.deps.dev/v3/systems/npm/packages/is-callback-function/versions/1.0.1:dependencies — retrieved 2026-10-29T21:25:41.553Z
- https://api.deps.dev/v3/systems/npm/packages/is-callback-function/versions/1.0.1 — retrieved 2026-10-29T21:25:41.634Z (stale snapshot; refresh pending)
- https://api.deps.dev/v3/projects/github.com%2Ftunnckocore%2Fis-callback-function — retrieved 2026-10-29T21:25:41.737Z