An open API service providing package, version and dependency metadata of many open source software ecosystems and registries.

npmjs.org "checking" keyword

View the packages on the npmjs.org package registry that are tagged with the "checking" keyword.

Top 8.1% on npmjs.org
serializable-types 0.9.0 💰
Runtime type assertion and serialization system
14 versions - Latest release: about 4 years ago - 2 dependent packages - 12 dependent repositories - 86 downloads last month - 15 stars on GitHub - 1 maintainer
@harshahari/npmcheck 1.0.0
npm checking
1 version - Latest release: about 3 years ago - 3 downloads last month - 0 stars on GitHub - 1 maintainer
Top 1.6% on npmjs.org
type-check 0.4.0
type-check allows you to check the types of JavaScript values at runtime with a Haskell like type...
6 versions - Latest release: almost 6 years ago - 1,486 dependent packages - 2,192,557 dependent repositories - 309 million downloads last month - 212 stars on GitHub - 1 maintainer
Top 0.9% on npmjs.org
@sindresorhus/is 7.2.0 💰
Type check values
61 versions - Latest release: about 2 months ago - 336 dependent packages - 1,059,702 dependent repositories - 130 million downloads last month - 1,737 stars on GitHub - 1 maintainer
parametr 1.0.4
A parameter management utility.
4 versions - Latest release: over 7 years ago - 1 dependent package - 1 dependent repositories - 8 downloads last month - 0 stars on GitHub - 1 maintainer
storkjs-persistence 0.0.3
Basic persistence capabilities for the data object.
3 versions - Latest release: almost 9 years ago - 1 dependent repositories - 7 downloads last month - 1 stars on GitHub - 5 maintainers
Top 2.4% on npmjs.org
decoders 2.7.5 💰
Elegant and battle-tested validation library for type-safe input data for TypeScript
147 versions - Latest release: 5 months ago - 24 dependent packages - 77 dependent repositories - 75.2 thousand downloads last month - 393 stars on GitHub - 1 maintainer
implementjs 0.3.0 💰
Strong type-checking for dependency injection and method arguments.
5 versions - Latest release: over 11 years ago - 1 dependent package - 9 dependent repositories - 61 downloads last month - 20 stars on GitHub - 1 maintainer
is-a 0.2.5
type checking "micro library"
11 versions - Latest release: about 12 years ago - 2 dependent packages - 2 dependent repositories - 19 downloads last month - 0 stars on GitHub - 1 maintainer
Top 0.8% on npmjs.org
ow 3.1.1 💰
Function argument validation for humans
47 versions - Latest release: 4 months ago - 480 dependent packages - 46,961 dependent repositories - 7.09 million downloads last month - 3,781 stars on GitHub - 1 maintainer
Top 1.0% on npmjs.org
tcomb 3.2.29 💰
Type checking and DDD for JavaScript
74 versions - Latest release: about 7 years ago - 243 dependent packages - 21,243 dependent repositories - 6.42 million downloads last month - 1,894 stars on GitHub - 1 maintainer
@francis.tec/npmvet 0.1.6
A simple CLI tool for vetting npm package versions
2 versions - Latest release: over 3 years ago - 1 dependent package - 3 downloads last month - 208 stars on GitHub - 1 maintainer
Top 8.2% on npmjs.org
ngx-ow 0.2.0
Angular form validation on steroids
2 versions - Latest release: over 7 years ago - 2 dependent packages - 1 dependent repositories - 12 downloads last month - 45 stars on GitHub - 1 maintainer
zana-check 0.2.0
A library for checking types and statuses
4 versions - Latest release: over 9 years ago - 4 dependent packages - 5 dependent repositories - 11 downloads last month - 0 stars on GitHub - 1 maintainer
Top 1.8% on npmjs.org
codemirror-spell-checker 1.1.2
Dead-simple spell checking in CodeMirror.
3 versions - Latest release: over 9 years ago - 51 dependent packages - 4,603 dependent repositories - 473 thousand downloads last month - 82 stars on GitHub - 1 maintainer
Top 1.4% on npmjs.org
type-is 2.0.1
Infer the content-type of a request.
39 versions - Latest release: 11 months ago - 1,361 dependent packages - 1,827,489 dependent repositories - 255 million downloads last month - 226 stars on GitHub - 5 maintainers
is-dis 0.0.7
Tiny type/argument validation library.
1 version - Latest release: over 7 years ago - 1 dependent package - 1 dependent repositories - 3 downloads last month - 0 stars on GitHub - 1 maintainer
Top 1.4% on npmjs.org
isemail 3.2.0
Validate an email address according to RFCs 5321, 5322, and others
21 versions - Latest release: over 7 years ago - 168 dependent packages - 297,791 dependent repositories - 3.05 million downloads last month - 255 stars on GitHub - 3 maintainers
detonate 0.0.2
Go boom! with a clean, compact syntax for your javascript type checking.
3 versions - Latest release: almost 10 years ago - 1 dependent package - 1 dependent repositories - 7 downloads last month - 2 stars on GitHub - 1 maintainer
want-type 1.1.0
a library for hassle-free type checking in Node.js
2 versions - Latest release: about 6 years ago - 1 dependent repositories - 9 downloads last month - 3 stars on GitHub - 1 maintainer
zodrq 1.0.8
type safety request build with zod
15 versions - Latest release: almost 3 years ago - 1 dependent repositories - 13 downloads last month - 3 stars on GitHub - 1 maintainer
Top 3.1% on npmjs.org
is2 2.0.9
A type checking library where each exported function returns either true or false and does not th...
30 versions - Latest release: over 3 years ago - 36 dependent packages - 50,964 dependent repositories - 10.7 million downloads last month - 10 stars on GitHub - 2 maintainers
nobistempore 1.2.1
allows easy type enforcement for all JS types objects and classes. it is also extensible and prov...
4 versions - Latest release: almost 2 years ago - 2 downloads last month - 0 stars on GitHub - 1 maintainer
app-usage-events-react 1.1.14
A set of types, type checks, and type guards for simpler, safer, and easier to read code.
11 versions - Latest release: almost 2 years ago - 1 dependent package - 40 downloads last month - 0 stars on GitHub - 1 maintainer
@connor-mcintyre/exist-js 0.1.0
Does existance checking for you.
1 version - Latest release: almost 8 years ago - 1 dependent package - 1 dependent repositories - 6 downloads last month - 1 maintainer
typezen 0.1.0
A collection of TypeScript utilities for safe type checking and inference.
9 versions - Latest release: 12 months ago - 79 downloads last month - 0 stars on GitHub - 1 maintainer
@codebit-programando-solucoes/codemirror-spell-checker 1.1.5
Dead-simple spell checking in CodeMirror.
3 versions - Latest release: about 1 year ago - 76 downloads last month - 85 stars on GitHub - 2 maintainers
null-undefined-guard 1.0.0
Guard against null and undefined values
1 version - Latest release: over 4 years ago - 1 dependent package - 3 downloads last month - 0 stars on GitHub - 1 maintainer
Top 8.2% on npmjs.org
environment 1.1.0 💰
Check which JavaScript environment your code is running in at runtime: browser, Node.js, Bun, etc
4 versions - Latest release: almost 2 years ago - 3 dependent packages - 19 dependent repositories - 68.9 million downloads last month - 159 stars on GitHub - 1 maintainer
ow--fork-by-jblew-with-catching 0.13.5 💰
Function argument validation for humans
4 versions - Latest release: over 6 years ago - 4 dependent packages - 8 dependent repositories - 25 downloads last month - 3,781 stars on GitHub - 1 maintainer
Top 5.8% on npmjs.org
@tamagui/ow 0.28.1 💰
Function argument validation for humans
1 version - Latest release: about 4 years ago - 2 dependent packages - 15 dependent repositories - 39 downloads last month - 3,781 stars on GitHub - 1 maintainer
@rastopyr/ow 0.13.2 💰
Function argument validation for humans
2 versions - Latest release: over 6 years ago - 2 dependent packages - 1 dependent repositories - 11 downloads last month - 3,876 stars on GitHub - 1 maintainer
allege 2.0.1
Make complex conditionals easier to read and write
8 versions - Latest release: almost 8 years ago - 6 dependent packages - 4 dependent repositories - 131 downloads last month - 1 stars on GitHub - 1 maintainer
jsconfig-init 1.0.2
Turn on transpile-free type hinting for your vanilla JS projects #JSWithTypes
3 versions - Latest release: over 3 years ago - 2 dependent packages - 28 downloads last month - 0 stars on GitHub - 1 maintainer
helpful-errors 1.7.0
A standard set of errors and methods for simpler, safer, and easier to read code.
9 versions - Latest release: 12 days ago - 3.8 thousand downloads last month - 0 stars on GitHub - 1 maintainer
borrowing 0.3.4 💰
A utility library that provides borrowing mechanisms via assertion functions
18 versions - Latest release: 6 months ago - 10 downloads last month - 0 stars on GitHub - 1 maintainer
@ehmpathy/error-fns 1.3.7
A standard set of errors and methods for simpler, safer, and easier to read code.
11 versions - Latest release: over 1 year ago - 4 dependent packages - 6.2 thousand downloads last month - 0 stars on GitHub - 1 maintainer
deep-type-check 1.0.2
Runtime type checking with "value as type" model definition in Javascript.
2 versions - Latest release: over 4 years ago - 1 dependent package - 84 downloads last month - 1 maintainer
@langurama/checker 2.0.0-rc1
Retardedly basic checking for Node.js and the browser.
2 versions - Latest release: about 5 years ago - 1 dependent package - 7 downloads last month - 0 stars on GitHub - 1 maintainer
sinoni 1.2.5
Sinoni for NodeJS
8 versions - Latest release: over 6 years ago - 1 dependent package - 4 dependent repositories - 51 downloads last month - 0 stars on GitHub - 1 maintainer
Top 9.7% on npmjs.org
typed-decoders 3.4.6
Typesafe decoders for Typescript
27 versions - Latest release: almost 4 years ago - 2 dependent packages - 1 dependent repositories - 62 downloads last month - 4 stars on GitHub - 1 maintainer
type-from 1.0.1
Get type from given argument
2 versions - Latest release: almost 8 years ago - 5 dependent packages - 4 dependent repositories - 25 downloads last month - 1 stars on GitHub - 1 maintainer
error-if-index-not-valid-after-offset-was-added 1.0.0
Function triggers error if passed index is not valid, assuming an offset was recently added to it
1 version - Latest release: almost 7 years ago - 5 dependent packages - 5 dependent repositories - 22 downloads last month - 0 stars on GitHub - 1 maintainer
ts-run-assert 0.2.0
Typescript runtime type assertion. Works with a transformer that compiles structure information i...
1 version - Latest release: almost 6 years ago - 2 downloads last month - 0 stars on GitHub - 1 maintainer
type-checking 1.0.1
Check for what you need. Mainly for framework developers
2 versions - Latest release: over 11 years ago - 1 dependent package - 2 dependent repositories - 6 downloads last month - 0 stars on GitHub - 1 maintainer
componentjs-tracing 0.9.5 💰
Run-Time Tracing for ComponentJS based Rich Client UIs
6 versions - Latest release: over 11 years ago - 1 dependent package - 1 dependent repositories - 16 downloads last month - 2 stars on GitHub - 1 maintainer
@symbion/runtype 1.2.1
Runtime type system for TypeScript
20 versions - Latest release: about 2 months ago - 4 dependent packages - 2 dependent repositories - 52 downloads last month - 3 stars on GitHub - 1 maintainer
@mironal/validate-ts 1.0.0
The object validator for TypeScript.
1 version - Latest release: over 7 years ago - 1 dependent package - 1 dependent repositories - 7 downloads last month - 1 stars on GitHub - 1 maintainer
Top 7.0% on npmjs.org
@writetome51/array-and-index-validation 1.0.6
Functions that check if the index is valid and the array is actually an array.
7 versions - Latest release: almost 7 years ago - 29 dependent packages - 3 dependent repositories - 17 downloads last month - 1 maintainer
jspcom 5.0.4
TypeScript and JavaScript page component object framework for Selenium
21 versions - Latest release: over 2 years ago - 1 dependent package - 6 downloads last month - 0 stars on GitHub - 1 maintainer
nix-react-state-validate 1.1.4
Validation package for the state object in React
19 versions - Latest release: almost 5 years ago - 1 dependent package - 1 dependent repositories - 12 downloads last month - 1 stars on GitHub - 1 maintainer
Top 5.9% on npmjs.org
variable-type 1.0.0 💰
Runtime type checking for variable and similar objects.
8 versions - Latest release: about 6 years ago - 6 dependent packages - 7 dependent repositories - 108 downloads last month - 24 stars on GitHub - 1 maintainer
umpire 0.0.1
A logical framework
1 version - Latest release: over 11 years ago - 1 dependent repositories - 2 downloads last month - 0 stars on GitHub - 1 maintainer
Top 7.6% on npmjs.org
get-type 1.1.0
Get the type of a variable or one unevaluated operand
2 versions - Latest release: over 11 years ago - 3 dependent packages - 4 dependent repositories - 250 downloads last month - 1 maintainer
node-graphql-constraint-lambda 3.2.2
GraphQL 'constraint' directive written in functional programming style
5 versions - Latest release: about 7 years ago - 1 dependent package - 1 dependent repositories - 35 downloads last month - 11 stars on GitHub - 1 maintainer
@sounisi5011/ts-utils-is-property-accessible 1.0.3
Check if a value is property accessible
4 versions - Latest release: over 3 years ago - 4 dependent packages - 1 dependent repositories - 65 downloads last month - 5 stars on GitHub - 1 maintainer
app-usage-events-emitter-react 1.0.1
A set of types, type checks, and type guards for simpler, safer, and easier to read code.
2 versions - Latest release: over 2 years ago - 1 dependent package - 6 downloads last month - 0 stars on GitHub - 1 maintainer
@wonderlandlabs/walrus 0.1.4 💰
utility class for type checking, text ops
14 versions - Latest release: 5 months ago - 3 dependent packages - 3 dependent repositories - 113 downloads last month - 0 stars on GitHub - 1 maintainer
check-modify 1.0.3
Simple text checkers and modifiers for forms
4 versions - Latest release: over 8 years ago - 1 dependent package - 1 dependent repositories - 10 downloads last month - 1 maintainer
@jakesidsmith/tsassert 0.3.2
Check TypeScript types against assertion comments
13 versions - Latest release: over 3 years ago - 3 dependent packages - 2 dependent repositories - 37 downloads last month - 0 stars on GitHub - 1 maintainer
plagiarism 1.0.3
Plagiarism checker for NodeJS
4 versions - Latest release: over 6 years ago - 2 dependent packages - 3 dependent repositories - 0 downloads last month - 1 stars on GitHub - 1 maintainer
@biscuitpants/codemirror-spell-checker 0.0.12
Tweaked and updated spell checker for CodeMirror
12 versions - Latest release: over 4 years ago - 1 dependent package - 350 downloads last month - 1 maintainer
validation-framework-ts 1.0.1
Validation framework for TypeScript and JavaScript
2 versions - Latest release: about 7 years ago - 1 dependent repositories - 8 downloads last month - 3 stars on GitHub - 1 maintainer
assert-kindof 2.0.1 💰
Check native type of value and throw AssertionError if not okey. Clean stack traces. Simplicity. ...
8 versions - Latest release: almost 9 years ago - 11 dependent packages - 11 dependent repositories - 110 downloads last month - 4 stars on GitHub - 2 maintainers
smart-types 0.1.0
A smarter way to check Javascript types.
3 versions - Latest release: over 9 years ago - 1 dependent repositories - 8 downloads last month - 2 stars on GitHub - 1 maintainer
redux-resource-prop-types 4.0.2
prop-types for Redux Resource
17 versions - Latest release: about 6 years ago - 1 dependent repositories - 462 downloads last month - 234 stars on GitHub - 1 maintainer
js-runtime-environment 1.0.0 💰
Identify which JavaScript environment your code is running in at runtime — Browser, Node.js, Bun,...
1 version - Latest release: 5 months ago - 8 downloads last month - 0 stars on GitHub - 1 maintainer
typedof 0.0.1 💰
better type checking
1 version - Latest release: over 12 years ago - 1 dependent package - 1 dependent repositories - 7 downloads last month - 2 stars on GitHub - 1 maintainer
npm-dep-check 1.0.1
Find the dependencies of an NPM package
2 versions - Latest release: almost 5 years ago - 1 dependent package - 3 downloads last month - 0 stars on GitHub - 1 maintainer
@jeffmcmahan/type 0.0.2
Simple cross-engine type checker
2 versions - Latest release: almost 6 years ago - 1 dependent package - 3 downloads last month - 1 maintainer
Top 3.4% on npmjs.org
npmvet 0.2.1
A simple CLI tool for vetting npm package versions
8 versions - Latest release: about 3 years ago - 13 dependent packages - 23 dependent repositories - 1.17 thousand downloads last month - 208 stars on GitHub - 1 maintainer
redux-resource-plugins 4.0.0
Official plugins for Redux Resource
22 versions - Latest release: almost 6 years ago - 4 dependent repositories - 17.1 thousand downloads last month - 234 stars on GitHub - 1 maintainer
tcomb1 1.0.0 💰
Type checking and DDD for JavaScript
1 version - Latest release: 8 months ago - 1 downloads last month - 1,887 stars on GitHub - 1 maintainer
@ssts/email 1.0.0
Validate an email => true | false.
9 versions - Latest release: about 1 year ago - 12 downloads last month - 0 stars on GitHub - 1 maintainer
error-if-index-how-many-or-array-are-not-valid 3.0.1
Function triggers error if a given index, array, or 'howMany' items request is not valid
5 versions - Latest release: over 4 years ago - 5 dependent packages - 11 dependent repositories - 16 downloads last month - 0 stars on GitHub - 1 maintainer
checking 1.0.1
Checking domain names availability
2 versions - Latest release: about 10 years ago - 1 dependent package - 1 dependent repositories - 12 downloads last month - 2 stars on GitHub - 1 maintainer
yxess 0.0.3
Find, Diagnose and fix problems in your JavaScript code.
2 versions - Latest release: over 5 years ago - 0 downloads last month - 1 maintainer
tcomb-additional-types 0.0.2 💰
Additional types for tcomb
2 versions - Latest release: over 8 years ago - 2 dependent repositories - 24 downloads last month - 4 stars on GitHub - 1 maintainer
type-predicates 0.1.3
Type-checking functions
7 versions - Latest release: almost 12 years ago - 1 dependent package - 1 dependent repositories - 12 downloads last month - 1 stars on GitHub - 1 maintainer
@choksheak/parse-args 1.0.1
Tiny and easy-to-use command-line arguments parser.
2 versions - Latest release: about 5 years ago - 1 dependent package - 158 downloads last month - 2 stars on GitHub - 1 maintainer
iza 0.0.6 💰
Iza Validator package? true. Iza type checker? true.
7 versions - Latest release: almost 12 years ago - 1 dependent package - 1 dependent repositories - 178 downloads last month - 2 stars on GitHub - 1 maintainer
is-assert 0.0.4
Type check and assert
4 versions - Latest release: over 4 years ago - 1 dependent package - 5 downloads last month - 0 stars on GitHub - 1 maintainer
isnot 1.0.4
All imaginable type checking utils with their negation
17 versions - Latest release: over 2 years ago - 5 dependent packages - 3 dependent repositories - 53 downloads last month - 1 stars on GitHub - 1 maintainer
ensure-it 1.0.4
Easy JavaScript type assurance.
3 versions - Latest release: almost 12 years ago - 1 dependent package - 1 dependent repositories - 12 downloads last month - 0 stars on GitHub - 1 maintainer
sceptik 0.0.5
Simple yet powerful permission manager for javascript applications.
5 versions - Latest release: over 5 years ago - 6 downloads last month - 0 stars on GitHub - 1 maintainer
Top 8.2% on npmjs.org
tcomb-postcss 1.0.2 💰
Extends the tcomb library with PostCSS irreducible node types.
3 versions - Latest release: over 10 years ago - 4 dependent packages - 203 dependent repositories - 206 downloads last month - 3 stars on GitHub - 1 maintainer
@dabapps/create-webpack-config 0.4.5
A utility for creating webpack configs with common settings
15 versions - Latest release: about 5 years ago - 1 dependent package - 1 dependent repositories - 150 downloads last month - 1 stars on GitHub - 1 maintainer
enterprise-number-classification-sdk 1.0.2-enterprise.stable
A robust, scalable, framework-agnostic solution for mathemetical even/odd checking in distributed...
3 versions - Latest release: about 2 months ago - 352 downloads last month - 1 maintainer
typecraft 1.1.0 💰
library for crafting types and casting type inhabitants
8 versions - Latest release: over 3 years ago - 1 dependent package - 23 downloads last month - 0 stars on GitHub - 1 maintainer
is-really-primitive 1.2.5
test if a value is a javascript primitive type
8 versions - Latest release: almost 9 years ago - 1 dependent package - 1 dependent repositories - 9 downloads last month - 1 maintainer
Top 2.8% on npmjs.org
typical 7.3.0
Isomorphic, functional type-checking for Javascript
29 versions - Latest release: over 1 year ago - 85 dependent packages - 87,823 dependent repositories - 21.7 million downloads last month - 24 stars on GitHub - 1 maintainer
datamatch 2.2.17
Simple and Fast Data Validation for Node.js
57 versions - Latest release: about 1 year ago - 16 downloads last month - 1 stars on GitHub - 1 maintainer
Top 4.3% on npmjs.org
check-type 0.4.11
Library to check variable type and properties in object.
15 versions - Latest release: over 11 years ago - 8 dependent packages - 172 dependent repositories - 18.8 thousand downloads last month - 14 stars on GitHub - 1 maintainer
Top 4.9% on npmjs.org
strong-type 1.1.0 💰
allows easy type enforcement for all JS types objects and classes. it is also extensible and prov...
14 versions - Latest release: over 4 years ago - 15 dependent packages - 439 dependent repositories - 291 thousand downloads last month - 9 stars on GitHub - 1 maintainer
typify-bin 0.0.7
Runtime type-checking for JavaScript.
7 versions - Latest release: almost 7 years ago - 3 dependent packages - 4 dependent repositories - 219 downloads last month - 0 stars on GitHub - 1 maintainer
diff-merge 0.0.5
[![Build Status](https://travis-ci.org/storkjs/merge-diff.svg)](http://travis-ci.org/storkjs/merg...
1 version - Latest release: about 10 years ago - 1 dependent package - 1 dependent repositories - 8 downloads last month - 3 stars on GitHub - 1 maintainer
tcomb-dist 3.0.0 💰
Type checking and DDD for JavaScript
1 version - Latest release: almost 10 years ago - 1 dependent repositories - 5 downloads last month - 1,887 stars on GitHub - 1 maintainer
js-asserts 1.0.18
assertions for node and browser
20 versions - Latest release: over 4 years ago - 1 dependent package - 1 dependent repositories - 25 downloads last month - 0 stars on GitHub - 1 maintainer
options-manager 1.0.0
Simple options manager for JavaScript libraries. Handles type checking, default values assignatio...
1 version - Latest release: about 10 years ago - 1 dependent package - 1 dependent repositories - 21 downloads last month - 1 stars on GitHub - 1 maintainer
falitjs 0.1.0
Static-typing and optional parameters in native JavaScript.
3 versions - Latest release: over 11 years ago - 1 dependent package - 1 dependent repositories - 10 downloads last month - 2 stars on GitHub - 1 maintainer