typechecker
Advanced tools
Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)
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')npm install --save typecheckerrequire('typechecker')//wzrd.in/bundle/typechecker@4.6.0ender add typecheckerrequire('typechecker')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.js is esnext source code with require for modulestypechecker/edition-browsers/index.js is esnext compiled for browsers with require for modulestypechecker/edition-node-0.8/index.js is esnext 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:
v4.6.0 2018 September 8
function(AnArgumentWithAnUpperCaseFirstLetter){} being detected as a class by isClass and isConventionalClassFAQs
Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)
The npm package typechecker receives a total of 141,811 weekly downloads. As such, typechecker popularity was classified as popular.
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
Research
A malicious npm package disguised as a WhatsApp client is exploiting authentication flows with a remote kill switch to exfiltrate data and destroy files.
Security News
PyPI now supports digital attestations, enhancing security and trust by allowing package maintainers to verify the authenticity of Python packages.
Security News
GitHub removed 27 malicious pull requests attempting to inject harmful code across multiple open source repositories, in another round of low-effort attacks.