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npmjs.org "type-checking" keyword

strong-typed 0.4.0
A runtime type-checking library for javascript
7 versions - Latest release: over 1 year ago - 1 dependent repositories - 128 downloads last month - 1 stars on GitHub - 1 maintainer
Top 2.0% on npmjs.org
@sapphire/shapeshift 3.9.7 πŸ’°
Blazing fast input validation and transformation ⚑
406 versions - Latest release: about 2 months ago - 87 dependent packages - 9,102 dependent repositories - 722 thousand downloads last month - 89 stars on GitHub - 3 maintainers
Top 2.3% on npmjs.org
typechecker 9.3.0 πŸ’°
Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)
135 versions - Latest release: 5 months ago - 50 dependent packages - 15,842 dependent repositories - 831 thousand downloads last month - 47 stars on GitHub - 1 maintainer
checker-as-is 0.9.32
Check your types at runtime with ESNext syntax by meta programing in node.js and browser with int...
33 versions - Latest release: over 1 year ago - 2 dependent packages - 64 downloads last month - 3 stars on GitHub - 1 maintainer
@rastopyr/ow 0.13.2 πŸ’°
Function argument validation for humans
2 versions - Latest release: over 4 years ago - 2 dependent packages - 1 dependent repositories - 5 downloads last month - 3,781 stars on GitHub - 1 maintainer
Top 0.8% on npmjs.org
ow 2.0.0 πŸ’°
Function argument validation for humans
44 versions - Latest release: 14 days ago - 480 dependent packages - 46,961 dependent repositories - 3.2 million downloads last month - 3,781 stars on GitHub - 1 maintainer
Top 5.8% on npmjs.org
@tamagui/ow 0.28.1 πŸ’°
Function argument validation for humans
1 version - Latest release: over 2 years ago - 2 dependent packages - 15 dependent repositories - 53 downloads last month - 3,781 stars on GitHub - 1 maintainer
ow--fork-by-jblew-with-catching 0.13.5 πŸ’°
Function argument validation for humans
4 versions - Latest release: over 4 years ago - 4 dependent packages - 8 dependent repositories - 7 downloads last month - 3,781 stars on GitHub - 1 maintainer
as-safely 0.1.3
TypeScript Library for safe type assertion
4 versions - Latest release: over 2 years ago - 3 dependent packages - 640 downloads last month - 38 stars on GitHub - 1 maintainer
wtf-is 0.1.1
Tiny type-checking library
2 versions - Latest release: about 10 years ago - 1 dependent repositories - 7 downloads last month - 0 stars on GitHub - 1 maintainer
arty 0.1.0
tiny javascript library for asserting types on function arguments
1 version - Latest release: over 9 years ago - 4 dependent packages - 1 dependent repositories - 5 downloads last month - 0 stars on GitHub - 1 maintainer
@arcletjs/nepattern 1.0.3
Not-Enough-Pattern
4 versions - Latest release: about 1 year ago - 2 dependent packages - 1 dependent repositories - 1 downloads last month - 1 stars on GitHub - 1 maintainer
@arcletjs/alconna 1.0.4
A High-performance, Generality, Humane Command Line Arguments Parser Library.
5 versions - Latest release: about 1 year ago - 1 dependent package - 3 downloads last month - 1 stars on GitHub - 1 maintainer
@akanshgulati/are 1.1.0
A utility for type checking elements on an array. The library is inspired from chai framework su...
3 versions - Latest release: over 4 years ago - 2 dependent packages - 1 dependent repositories - 4 downloads last month - 4 stars on GitHub - 1 maintainer
yatc 0.1.0
Yet Another Type Checker for JavaScript
1 version - Latest release: over 9 years ago - 2 dependent packages - 5 dependent repositories - 15 downloads last month - 1 stars on GitHub - 1 maintainer
v8type 0.1.0
Expose V8 C++ type checking to JS
1 version - Latest release: over 11 years ago - 1 dependent package - 2 dependent repositories - 11 downloads last month - 2 stars on GitHub - 1 maintainer
Top 0.7% on npmjs.org
ts-toolbelt 9.6.0 πŸ’°
TypeScript's largest utility library
916 versions - Latest release: about 3 years ago - 1,076 dependent packages - 19,205 dependent repositories - 11.1 million downloads last month - 6,428 stars on GitHub - 1 maintainer
guard-env 0.0.2
Guard-env is a Node.js module for type-checking and guarding environment variables based on speci...
2 versions - Latest release: 3 months ago - 32 downloads last month - 0 stars on GitHub - 1 maintainer
Top 2.4% on npmjs.org
objectmodel 4.4.5
Strong Dynamically Typed Object Modeling for JavaScript
77 versions - Latest release: 9 months ago - 32 dependent packages - 75 dependent repositories - 12.4 thousand downloads last month - 467 stars on GitHub - 1 maintainer
common-coding-tools 2.0.36 πŸ’°
A common code module for use in multiple npm packages
69 versions - Latest release: 9 months ago - 2 dependent packages - 1 dependent repositories - 78 downloads last month - 2 stars on GitHub - 1 maintainer
@we-mobius/type-check 0.0.4
Type-checking support.
4 versions - Latest release: about 1 month ago - 9 dependent packages - 1 dependent repositories - 73 downloads last month - 1 maintainer
Top 2.0% on npmjs.org
machine 15.2.3
Build functions in standardized containers.
132 versions - Latest release: 11 months ago - 267 dependent packages - 3,548 dependent repositories - 229 thousand downloads last month - 143 stars on GitHub - 3 maintainers
Top 1.8% on npmjs.org
is-what 4.1.16 πŸ’°
JS type check (TypeScript supported) functions like `isPlainObject() isArray()` etc. A simple & s...
68 versions - Latest release: 7 months ago - 128 dependent packages - 306,916 dependent repositories - 24 million downloads last month - 111 stars on GitHub - 1 maintainer
vuex-store-validator 2.0.7 πŸ’°
Validate Vuex Commits with Joi, Superstruct & Yup Schema
11 versions - Latest release: almost 3 years ago - 1 dependent package - 23 downloads last month - 4 stars on GitHub - 1 maintainer
@studio/schema 7.0.1
Plain JavaScript objects with runtime type guarantees
50 versions - Latest release: 5 days ago - 1 dependent package - 283 downloads last month - 4 stars on GitHub - 2 maintainers
@basekits/kit-type 1.0.0
Essential type checking kit for basekits.
1 version - Latest release: over 4 years ago - 12 dependent packages - 17 downloads last month - 1 maintainer
@samislam/checktypes 1.0.1
a simple utility for validating types, such as strings, numbers, arrays, functions and so on
1 version - Latest release: about 3 years ago - 10 dependent packages - 7 dependent repositories - 69 downloads last month - 0 stars on GitHub - 1 maintainer
prop-types-css 0.1.1
Runtime type checking for css props.
3 versions - Latest release: over 3 years ago - 2 dependent packages - 2 dependent repositories - 48 downloads last month - 0 stars on GitHub - 1 maintainer
@pro-script/as-is 1.1.2
Check your types at runtime with ESNext syntax by meta programing in node.js and browser with int...
16 versions - Latest release: 6 days ago - 2 dependent packages - 360 downloads last month - 1 stars on GitHub - 1 maintainer
Top 7.8% on npmjs.org
es-is 3.3.10
ES module friendly fork of the definitive JavaScript type testing library
11 versions - Latest release: about 7 years ago - 20 dependent packages - 24 dependent repositories - 1.96 thousand downloads last month - 2 stars on GitHub - 2 maintainers
Top 6.5% on npmjs.org
typeco 1.0.0 πŸ’°
A javascript library which allows to check javascript value types at runtime
3 versions - Latest release: over 5 years ago - 4 dependent packages - 468 dependent repositories - 3.74 thousand downloads last month - 2 stars on GitHub - 1 maintainer
Top 4.0% on npmjs.org
typeis 1.1.2
Typeis. it's the smart and simple javascript type check and validation library
10 versions - Latest release: over 6 years ago - 9 dependent packages - 14 dependent repositories - 1.28 thousand downloads last month - 93 stars on GitHub - 1 maintainer
check-data-type 1.0.0
A module to validate the data type in javascript.
1 version - Latest release: almost 7 years ago - 1 dependent package - 1 dependent repositories - 4 downloads last month - 0 stars on GitHub - 1 maintainer
jstype 0.0.6
Extended and extensible javascript type checking
6 versions - Latest release: almost 11 years ago - 3 dependent packages - 4 dependent repositories - 16 downloads last month - 2 stars on GitHub - 1 maintainer
typee 1.1.0
A Javascript library for type checking
2 versions - Latest release: about 7 years ago - 1 dependent repositories - 5 downloads last month - 2 stars on GitHub - 1 maintainer
basic-data-handling 2.0.0 deprecated
package contains functions that simply check if the passed argument meets a data type requirement
16 versions - Latest release: about 5 years ago - 108 dependent packages - 4 dependent repositories - 19 downloads last month - 0 stars on GitHub - 1 maintainer
Top 9.8% on npmjs.org
check-arg-types 2.0.1
Pass in `arguments` and an array of the expected types (as string descriptions) and throw if they...
9 versions - Latest release: 8 months ago - 49 dependent packages - 15 dependent repositories - 124 downloads last month - 1 stars on GitHub - 1 maintainer
Top 2.3% on npmjs.org
typeforce 1.18.0
Another biased type checking solution for Javascript
69 versions - Latest release: over 5 years ago - 292 dependent packages - 12,799 dependent repositories - 726 thousand downloads last month - 22 stars on GitHub - 1 maintainer
Top 2.8% on npmjs.org
typical 7.1.1
Isomorphic, functional type-checking for Javascript
27 versions - Latest release: almost 3 years ago - 85 dependent packages - 87,823 dependent repositories - 17.4 million downloads last month - 19 stars on GitHub - 1 maintainer
Top 6.7% on npmjs.org
typely 0.0.0
Lightweight (meaning relatively fast) type-checking in CoffeeScript.
1 version - Latest release: almost 11 years ago - 5 dependent packages - 6 dependent repositories - 1.22 thousand downloads last month - 3 stars on GitHub - 1 maintainer
Top 5.7% on npmjs.org
@itsjonq/is 0.0.5
A tiny type checker
5 versions - Latest release: almost 4 years ago - 8 dependent packages - 143 dependent repositories - 8.47 thousand downloads last month - 5 stars on GitHub - 1 maintainer
what-type-is 1.2.0 πŸ’°
A simple type checking library for Node.js
5 versions - Latest release: over 6 years ago - 1 dependent repositories - 14 downloads last month - 7 stars on GitHub - 1 maintainer
truthify 1.0.0
Helps you confirm the existence of specified falsy values (e.g. 0)
1 version - Latest release: almost 9 years ago - 1 dependent repositories - 11 downloads last month - 1 maintainer
@fchauvel/quick-check 0.2.0
Internal DSL to check and convert JSON structures
2 versions - Latest release: over 4 years ago - 2 dependent packages - 1 dependent repositories - 6 downloads last month - 1 stars on GitHub - 1 maintainer
tisnthings 1.6.22
Smallish set of things I often use. Favors brevity.
5 versions - Latest release: about 8 years ago - 1 dependent package - 1 dependent repositories - 8 downloads last month - 0 stars on GitHub - 1 maintainer
typeguru 0.0.4
TypeGuru is a lightweight TypeScript utility library for type checking. It includes utility funct...
4 versions - Latest release: about 1 year ago - 5 downloads last month - 0 stars on GitHub - 1 maintainer
Top 7.9% on npmjs.org
vite-plugin-vitest-typescript-assert 1.1.4 πŸ’°
πŸ”₯ TypeScript type assertion plugin for vitest.
6 versions - Latest release: almost 2 years ago - 8 dependent packages - 5 dependent repositories - 47 downloads last month - 79 stars on GitHub - 1 maintainer
type-checking-utils 2.2.0
Type checking utilities.
10 versions - Latest release: 10 months ago - 3 dependent packages - 24 downloads last month - 1 maintainer
revtype 0.5.1
Turn any JavaScript data structure into its typed representation.
4 versions - Latest release: over 6 years ago - 1 dependent repositories - 8 downloads last month - 1 maintainer
@kevincuadros/react-code 1.3.2
> Pin input component for React
3 versions - Latest release: almost 2 years ago - 1 dependent package - 2 downloads last month - 0 stars on GitHub - 1 maintainer
tck 1.2.0
JavaScript library for check types
10 versions - Latest release: about 5 years ago - 7 dependent packages - 5 dependent repositories - 65 downloads last month - 1 stars on GitHub - 1 maintainer
typs 3.0.0
An handy library for type validation in Javascript
20 versions - Latest release: over 7 years ago - 1 dependent package - 2 dependent repositories - 24 downloads last month - 0 stars on GitHub - 1 maintainer
@writetome51/is-string-not-string 2.0.0
2 functions that check if argument is or is not string
2 versions - Latest release: almost 4 years ago - 1 dependent package - 1 dependent repositories - 5 downloads last month - 0 stars on GitHub - 1 maintainer
dis 0.3.7
Tiny tiny duck typing utility
9 versions - Latest release: almost 9 years ago - 6 dependent packages - 6 dependent repositories - 60 downloads last month - 0 stars on GitHub - 1 maintainer
clove-lang 2.0.5
A class-oriented programming-language
2 versions - Latest release: almost 4 years ago - 1 dependent package - 4 downloads last month - 1 maintainer
isit 1.1.0
Tests a value’s type against a string like 'positive integer' or 'non-empty map'.
3 versions - Latest release: over 6 years ago - 3 dependent packages - 2 dependent repositories - 53 downloads last month - 2 stars on GitHub - 1 maintainer
falsify 1.0.1
Helps you deny the existence of specified truthy values (e.g. 'someString', aParticularObject)
2 versions - Latest release: almost 9 years ago - 1 dependent package - 1 dependent repositories - 16 downloads last month - 1 maintainer
filter-shapes 1.0.1
filter objects to save bandwidth and catch errors, powered by type-by-example
2 versions - Latest release: about 1 year ago - 4 downloads last month - 0 stars on GitHub - 1 maintainer
@codecb/ts-utils 0.11.0
πŸ›  A modern and practical TypeScript type utility library
24 versions - Latest release: 14 days ago - 3 dependent packages - 2 dependent repositories - 127 downloads last month - 1 stars on GitHub - 1 maintainer
@oneisland/validator 0.0.3
A simple tool for validation and type checking of variables in JavaScript
3 versions - Latest release: over 4 years ago - 3 dependent packages - 2 dependent repositories - 6 downloads last month - 0 stars on GitHub - 1 maintainer
live-tsc 1.6.2
A lightweight esbuild-based implementation of tsc that trim off the types (without type checking)
15 versions - Latest release: over 1 year ago - 1 dependent package - 1 dependent repositories - 117 downloads last month - 5 stars on GitHub - 1 maintainer
@writetome51/is-object-not-object 2.0.0
2 functions that check if passed argument is or is not an object. Null is not considered an object
2 versions - Latest release: almost 4 years ago - 5 dependent packages - 7 dependent repositories - 6 downloads last month - 0 stars on GitHub - 1 maintainer
@writetome51/is-integer-is-float 2.0.1
Functions that check if argument is integer or float
3 versions - Latest release: over 3 years ago - 8 dependent packages - 20 dependent repositories - 104 downloads last month - 0 stars on GitHub - 1 maintainer
@fab1o/check-types 14.4.0
A little library for asserting types and values.
4 versions - Latest release: about 1 year ago - 2 dependent packages - 1 dependent repositories - 8 downloads last month - 0 stars on GitHub - 1 maintainer
type-by-example 1.0.3
strong and flexible runtime typechecking that's just javascript with types that are fully seriali...
4 versions - Latest release: about 1 year ago - 2 downloads last month - 0 stars on GitHub - 1 maintainer
typecraft 1.1.0 πŸ’°
library for crafting types and casting type inhabitants
8 versions - Latest release: over 1 year ago - 1 dependent package - 27 downloads last month - 0 stars on GitHub - 1 maintainer
function.check 0.11.1
Runtime type checking in plain javascript
25 versions - Latest release: almost 6 years ago - 1 dependent package - 1 dependent repositories - 50 downloads last month - 1 stars on GitHub - 1 maintainer
given-that 0.0.4
A simple library to change control flow into an easy to understand sentence.
4 versions - Latest release: about 6 years ago - 1 dependent package - 1 dependent repositories - 15 downloads last month - 1 maintainer
@typeguards/core 1.1.0 πŸ’°
Runtime type checking library for TS & JS
2 versions - Latest release: about 3 years ago - 1 dependent package - 1 dependent repositories - 14 downloads last month - 0 stars on GitHub - 1 maintainer
@writetome51/is-array-not-array 2.0.0
2 functions that check if argument is or is not array
2 versions - Latest release: almost 4 years ago - 19 dependent packages - 17 dependent repositories - 7 downloads last month - 0 stars on GitHub - 1 maintainer
lukinto-utils-type-checking 1.0.0
A library of type checking utilities.
1 version - Latest release: about 1 year ago - 2 downloads last month - 0 stars on GitHub - 1 maintainer
ensure.js 0.5.3
Simple JS type-checking + extras
9 versions - Latest release: over 9 years ago - 5 dependent packages - 6 dependent repositories - 25 downloads last month - 7 stars on GitHub - 1 maintainer
ensure-types 1.0.2
Simple helpers to ensure uncertain interfaces in typescript
3 versions - Latest release: over 4 years ago - 1 dependent package - 1 dependent repositories - 24 downloads last month - 0 stars on GitHub - 1 maintainer
error-if-not-function 1.0.0
Function triggers error if argument is not type 'function'
1 version - Latest release: about 5 years ago - 6 dependent packages - 5 dependent repositories - 10 downloads last month - 0 stars on GitHub - 1 maintainer
is-api 1.0.1
Tiny javascript library that you can extend with your own type checking methods.
3 versions - Latest release: over 6 years ago - 1 dependent package - 1 dependent repositories - 13 downloads last month - 3 stars on GitHub - 1 maintainer
runtype-check 1.1.0
Runtime type-checking of any value in javascript
5 versions - Latest release: about 1 year ago - 5 downloads last month - 0 stars on GitHub - 1 maintainer
easy-enums 1.1.8
Easy but powerful enums for safer code. e.g. const Fruit = new Enum("apple pear banana"); gives y...
10 versions - Latest release: over 3 years ago - 3 dependent packages - 8 dependent repositories - 14 downloads last month - 0 stars on GitHub - 1 maintainer
@ayonli/type-guard 0.1.0
Runtime type checking for JavaScript variables and functions.
1 version - Latest release: 9 months ago - 2 downloads last month - 1 stars on GitHub - 1 maintainer
@typeis/core 2.0.0-alpha.2
Typeis core
2 versions - Latest release: over 5 years ago - 1 dependent package - 1 dependent repositories - 7 downloads last month - 93 stars on GitHub - 1 maintainer
@composi/get-type 1.0.12
Function to get the type of the provided value. This is not the same as 'typeof'. It returns the ...
13 versions - Latest release: about 4 years ago - 3 dependent packages - 4 dependent repositories - 7 downloads last month - 1 stars on GitHub - 1 maintainer
errorist 0.2.0 πŸ’°
If you don't have an Error, errorist gives you one
6 versions - Latest release: about 7 years ago - 2 dependent packages - 1 dependent repositories - 32 downloads last month - 1 stars on GitHub - 1 maintainer
error-if-not-integer-zero-or-greater 2.0.0
Function triggers error if argument is not integer of zero or greater
2 versions - Latest release: almost 4 years ago - 11 dependent packages - 7 dependent repositories - 13 downloads last month - 0 stars on GitHub - 1 maintainer
lycoris 2.0.1
An object-oriented programming language
1 version - Latest release: over 4 years ago - 1 dependent package - 4 downloads last month - 1 maintainer
duck-check 2.1.8
A minimalist tool to check the shape of objects and the type of properties, provided a declarativ...
15 versions - Latest release: about 6 years ago - 2 dependent packages - 1 dependent repositories - 17 downloads last month - 10 stars on GitHub - 1 maintainer
foolproof 0.0.41
Project deprecated. Use lodash-node.
13 versions - Latest release: over 10 years ago - 1 dependent package - 1 dependent repositories - 15 downloads last month - 1 maintainer
type-guard 0.2.3 πŸ’°
Guard is a type checker that aims to make type checking function arguments easier and more readable.
7 versions - Latest release: over 9 years ago - 3 dependent packages - 6 dependent repositories - 19 downloads last month - 5 stars on GitHub - 1 maintainer
@codevor/js-is-type 0.2.0
🎯Type-checking for 'Primitive' JS Types made easy!
3 versions - Latest release: over 4 years ago - 2 dependent packages - 1 dependent repositories - 9 downloads last month - 2 stars on GitHub - 3 maintainers
typescript2python 1.0.13 πŸ’°
## About
14 versions - Latest release: about 2 months ago - 60 downloads last month - 9 stars on GitHub - 1 maintainer
primitive-predicates 2.1.4
A simple TypeScript library providing type guards for the primitive types in JavaScript.
34 versions - Latest release: about 2 months ago - 3 dependent packages - 1 dependent repositories - 476 downloads last month - 2 stars on GitHub - 1 maintainer
insure 0.0.3
Unobtrusive lightweight development type-checking framework
2 versions - Latest release: over 10 years ago - 1 dependent package - 1 dependent repositories - 12 downloads last month - 0 stars on GitHub - 1 maintainer
@writetome51/has-value-no-value 2.0.0
2 functions that check if argument is undefined or null
4 versions - Latest release: almost 4 years ago - 18 dependent packages - 11 dependent repositories - 25 downloads last month - 0 stars on GitHub - 1 maintainer
epyt 0.0.2
Type creation, validation, and comparison for Javascript
1 version - Latest release: about 9 years ago - 1 dependent package - 1 dependent repositories - 17 downloads last month - 1 maintainer
Top 5.9% on npmjs.org
variable-type 1.0.0 πŸ’°
Runtime type checking for variable and similar objects.
8 versions - Latest release: over 4 years ago - 6 dependent packages - 7 dependent repositories - 373 downloads last month - 23 stars on GitHub - 1 maintainer
tsguard.macro 0.0.2
Babel macro that automatically generates type guards for a given type (WIP)
2 versions - Latest release: over 5 years ago - 1 dependent repositories - 4 downloads last month - 12 stars on GitHub - 1 maintainer
@rho-contracts/rho-contracts 3.0.0
Racket-style Higher Order Contracts in Plain Javascript
2 versions - Latest release: about 4 years ago - 2 dependent packages - 1 dependent repositories - 8 downloads last month - 4 stars on GitHub - 1 maintainer
facies 3.0.3
A featureful function parameters signature module
7 versions - Latest release: over 4 years ago - 4 dependent packages - 3 dependent repositories - 133 downloads last month - 1 stars on GitHub - 1 maintainer
jshelperpack 1.0.5
JS helper pack
6 versions - Latest release: almost 4 years ago - 1 dependent package - 9 downloads last month - 1 stars on GitHub - 1 maintainer
@writetome51/is-finite-number 2.0.0
2 functions that check if passed argument is or is not a finite number
2 versions - Latest release: almost 4 years ago - 3 dependent packages - 16 dependent repositories - 52 downloads last month - 0 stars on GitHub - 1 maintainer
safetify 3.0.1 πŸ’°
Utility for resolving and making values types safe
14 versions - Latest release: about 5 years ago - 1 dependent package - 1 dependent repositories - 20 downloads last month - 7 stars on GitHub - 1 maintainer
crunchr 0.0.3
An experimental virtual machine running on adaptive neuronal networks. Built of an official resea...
1 version - Latest release: about 4 years ago - 1 dependent package - 1 dependent repositories - 2 downloads last month - 1 maintainer