is

Type check values

by sindresorhus

assertions is node-module npm-package type-check type-detection typescript

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TypeScript

1.8k stars 132 forks 52 contributorsQuiet · 3mo agoSince 2017 v8.1.0MIT

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sindresorhus159 contributions

bjornstar17 contributions

bndnsmth8 contributions

marlun784 contributions

SamVerschueren4 contributions

eugene-mohc3 contributions

itaisteinherz3 contributions

ltetzlaff3 contributions

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Feature request: Add `assert.notUndefined`ClosedIssue

Thanks for maintaining this package. Following up on #52. While was rejected because works for predicates, assertions do not have the same escape hatch. This was also questioned earlier, but the original commenter did not open a new issue: https://github.com/sindresorhus/is/issues/52#issuecomment-1181346334 Example: Possible signature: Expected behavior: is not a viable alternative since it rejects valid falsy values like , , and . Using instead of also avoids the ambiguity discussed in #52. Side note:** and could also be useful. is verbose, but it avoids the ambiguity of names like or .

enduity · 3mo ago

Feature request: isDOMExceptionClosedIssue

Usage example:

noshiro-pf · 4mo ago

Add multiple predicates to `optional`ClosedIssue

Hey 👋 Would be nice to be able to use with multiple values, e.g.: Current workarounds, both look not so sleek: Thank you! @sindresorhus/is: 7.1.1

vladshcherbin · 8mo ago

Structured data for AI agents

Repository: sindresorhus/is. Description: Type check values Stars: 1791, Forks: 132. Primary language: TypeScript. Languages: TypeScript (100%). License: MIT. Topics: assertions, is, node-module, npm-package, type-check, type-detection, typescript. Latest release: v8.1.0 (3mo ago). Open PRs: 0, open issues: 0. Last activity: 3mo ago. Community health: 85%. Top contributors: sindresorhus, bjornstar, bndnsmth, marlun78, SamVerschueren, eugene-mohc, itaisteinherz, ltetzlaff, melvin0008, joelpurra and others.