typechecker
Advanced tools
Changelog
v4.11.0 2019 November 18
Readme
Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)
Why should I use this instead of say instanceof?
Under certain circumstances instanceof may not return the correct results. This occurs with node's vm module especially, and circumstances where an object's prototype has been dereferenced from the original. As such, for basic == and === checks (like a === null), you're fine not using this, but for checks when you would have done instanceof (like err instanceof Error), you should try to use this instead. Plus things like isEmpty, isEmptyObject and isPlainObject are darn useful!
npm install --save typecheckerrequire('typechecker')<script type="module">
import * as pkg from '//dev.jspm.io/typechecker'
</script>
This package is published with the following editions:
typechecker aliases typechecker/index.js which uses Editions to automatically select the correct edition for the consumers environmenttypechecker/source/index.ts is typescript source code with import for modulestypechecker/edition-browsers/index.js is typescript compiled for browsers with import for modulestypechecker/edition-node-13/index.js is typescript compiled for node.js 13 with require for modulestypechecker/edition-node-0.8/index.js is typescript compiled for node.js 0.8 with require for modulesDiscover the release history by heading on over to the HISTORY.md file.
Discover how you can contribute by heading on over to the CONTRIBUTING.md file.
These amazing people are maintaining this project:
No sponsors yet! Will you be the first?
These amazing people have contributed code to this project:
Discover how you can contribute by heading on over to the CONTRIBUTING.md file.
Unless stated otherwise all works are:
and licensed under:
FAQs
Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)
We found that typechecker demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
Researchers recently demonstrated that the npm Registry is vulnerable to cache poisoning combined with DoS, posing significant risks for package availability.
Security News
The June TC39 meeting wrapped up this week with eight proposals moving on to the next stage. Here's a quick roundup of the features that the committee approved to advance.
Security News
Cyber extortion in the US and Canada hit record levels in 2023, with ransomware attacks surging and median ransom demands skyrocketing, though fewer companies are choosing to pay ransoms.