← Home

typechecker

npm Repository Homepage

Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)

51
Versions
Artistic-2.0
License
No
Install Scripts
Missing
Provenance

Supply chain provenance

Status for the latest visible version.

No SLSA provenance npm registry signatures gitHead linked

Without SLSA provenance there is no cryptographic link between this tarball and the public source — the axios compromise (March 2026) relied on exactly this gap.

Maintainers

bevryme

Keywords

arrayassertassertionasyncasync functionasync-functionasyncFunctionboolbooleanbrowsercheckcheck-typecheckingclassclass-identifierclass-instancecompareconventional classconventional-classconventionalClassdatedefine-typedenodeno-editiondeno-entrydenolandemptyempty arrayempty keysempty mapempty plain objectempty-arrayempty-keysempty-mapempty-plain-objectemptyArrayemptyKeysemptyMapemptyPlainObjecterrores2022es5functionget object typeget typeget-object-typeget-typegetObjectTypegetTypeinstanceofisis argumentsis arrayis asyncis async functionis boolis booleanis classis conventional classis dateis empty arrayis empty keysis empty mapis empty plain objectis empty weak mapis erroris functionis mapis native classis nullis nullishis numberis objectis plain objectis regexpis stringis syncis sync functionis undefinedis weak mapis-argumentsis-arrayis-asyncis-async-functionis-boolis-booleanis-classis-conventional-classis-dateis-empty-arrayis-empty-keysis-empty-mapis-empty-plain-objectis-empty-weak-mapis-erroris-functionis-mapis-native-classis-nullis-nullishis-numberis-objectis-plain-objis-plain-objectis-regexpis-stringis-syncis-sync-functionis-undefinedis-weak-mapisArgumentsisArrayisAsyncFunctionisBoolisBooleanisClassisConventionalClassisDateisEmptyArrayisEmptyKeysisEmptyMapisEmptyPlainObjectisEmptyWeakMapisErrorisFunctionisMapisNativeClassisNullisNullishisNumberisObjectisRegExpisStringisSyncisSyncFunctionisUndefinedisWeakMapjavascriptjavascript-typekeyskindmapmodulenativenative classnative-classnativeClassnodenullnumberobjectplainplain objectplain objectsplain-objectplain-objectsplainObjectprimitiveprimitive-typespureregexregexpregular expressionsimplestringsyncsyncFunctiontesttypetype-checktype-checkertype-checkingtypecheckertypedtypeguardstypeoftypestypescriptundefinedutilutilityvalidatevalidationvanillaverifyweak mapweak-mapweakMapwhat-type

Versions (showing 51 of 64)

View all versions
Version Deps Published
9.3.0 1 / 16
9.2.0 1 / 17
9.1.0 1 / 17
9.0.0 1 / 18
8.6.0 1 / 18
8.5.0 1 / 18
8.4.0 1 / 18
8.3.0 1 / 18
8.2.0 1 / 18
8.1.0 1 / 18
8.0.0 1 / 18
7.18.0 0 / 17
7.17.0 0 / 17
7.16.0 0 / 17
7.15.0 0 / 17
7.14.0 0 / 17
7.13.0 0 / 17
7.12.0 0 / 17
7.11.0 0 / 17
7.10.0 0 / 17
7.9.0 0 / 17
7.8.0 0 / 17
7.7.0 17 / 17
7.6.0 0 / 17
7.5.0 0 / 17
7.4.0 0 / 16
7.3.0 0 / 16
7.2.0 0 / 16
7.1.0 0 / 16
7.0.0 0 / 16
6.4.0 0 / 16
6.3.0 0 / 22
6.2.0 0 / 22
6.1.0 0 / 22
6.0.0 0 / 22
5.2.0 0 / 22
5.1.0 0 / 22
5.0.0 0 / 22
4.11.0 1 / 22
4.10.0 1 / 21
4.9.0 1 / 16
4.8.0 1 / 16
4.7.0 1 / 17
4.6.0 1 / 12
4.5.0 1 / 10
4.4.1 1 / 9
4.4.0 1 / 9
4.3.0 1 / 10
4.2.1 1 / 10
4.2.0 1 / 10
4.1.0 1 / 7

v9.3.0

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v9.2.0

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v9.1.0

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v9.0.0

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v8.6.0

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v8.5.0

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v8.4.0

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v8.3.0

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v8.2.0

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v8.1.0

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.

v8.0.0

1 finding
LOW No provenance attestation provenance

Package was published without Sigstore provenance. Consider requesting the maintainer enable provenance via CI/CD.