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ts-type-guards

Curried TypeScript type guards for primitive types and classes

• TypeScript
• type guards
• type
• guard
• isBoolean
• isNumber
• isString
• isSymbol
• isNull
• isUndefined
• isPrimitive
• isNonPrimitive
• is
• isLike
• View more

alling

• 0.7.0 • 5 years ago • 8 dependents • MITpublished version 0.7.0, 5 years ago8 dependents licensed under $MIT

narrowing

TypeScript tiny narrowing helpers you better use.

• typescript
• type
• type narrow
• type guards
• narrowing

nshen121

• 1.5.0 • 3 years ago • 9 dependents • MITpublished version 1.5.0, 3 years ago9 dependents licensed under $MIT

ts-util-is

TypeScript typeof utility helper with no dependencies.

• typescript
• util
• typeof
• type guards
• isArray
• isBase64
• isBoolean
• isDate
• isDateValid
• isDefined
• isError
• isFunction
• isGuid
• isInfinity
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justinlettau

• 2.1.0 • a year ago • 19 dependents • MITpublished version 2.1.0, a year ago19 dependents licensed under $MIT

@silvermine/toolbox

A library of common TypeScript types, custom type guards, and utility functions.

• TypeScript
• types
• type guards

onebytegone

• 0.4.0 • 8 months ago • 2 dependents • MITpublished version 0.4.0, 8 months ago2 dependents licensed under $MIT

type-fns

A set of types, type checks, and type guards for simpler, safer, and easier to read code.

• types
• type guards
• guards
• type checks
• checks
• type
• checking
• typescript

uladkasach

• 1.19.0 • 8 months ago • 33 dependents • MITpublished version 1.19.0, 8 months ago33 dependents licensed under $MIT

@ehmpathy/error-fns

A standard set of errors and methods for simpler, safer, and easier to read code.

• types
• type guards
• guards
• type checks
• checks
• type
• checking
• typescript

uladkasach

• 1.3.7 • 7 months ago • 26 dependents • MITpublished version 1.3.7, 7 months ago26 dependents licensed under $MIT

@flex-development/tutils

TypeScript utilities

• enums
• interfaces
• type guards
• type definitions
• typescript utilities
• typescript

unicornware

• 5.0.1 • 3 years ago • 15 dependents • BSD-3-Clausepublished version 5.0.1, 3 years ago15 dependents licensed under $BSD-3-Clause

@angular-package/type

Common types, type guards and type checkers.

• array
• bigint
• boolean
• check
• class
• date
• defined
• determine
• false
• function
• guard
• instance
• key
• propertyKey
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angularpackage

• 5.0.0-rc.0 • 3 years ago • 1 dependents • MITpublished version 5.0.0-rc.0, 3 years ago1 dependents licensed under $MIT

@alexevs/ts-guards

Typescript guards

• typescript
• types
• type guards

alexevs

• 1.0.4 • a month ago • 0 dependents • MITpublished version 1.0.4, a month ago0 dependents licensed under $MIT

@sknk/object-validator

function argument and Schema validator, composable predicates, customizable errors, extends with external validation libraries - minimal footprint

• schema
• argument
• object
• type guards
• validator
• object-validator
• compose
• minimal footprint

sandeepkumaar.c

• 2.0.1 • a year ago • 0 dependents • ISCpublished version 2.0.1, a year ago0 dependents licensed under $ISC

ts-type-checked

Type checking utilities for TypeScript.

• TypeScript
• type checking
• type checks
• duck typing
• type guards

jannanista

• 0.6.5 • 3 years ago • 5 dependents • MITpublished version 0.6.5, 3 years ago5 dependents licensed under $MIT

@safelytyped/core-types

Core safe types for Typescript

• architypes
• booleanish
• contracts
• data guarantees
• data guards
• defensive programming
• entities
• error reporting
• hashmap
• nominals
• operators
• protocols
• refined types
• safe types
• View more

stuartherbert

• 0.5.1 • 3 months ago • 11 dependents • BSD-3-Clausepublished version 0.5.1, 3 months ago11 dependents licensed under $BSD-3-Clause

@rob.hameetman/type-guards

Eslint plugin for TypeScript projects

• typescript
• ts
• types
• type guards

rob.h

• 1.1.0 • 7 months ago • 2 dependents • MITpublished version 1.1.0, 7 months ago2 dependents licensed under $MIT

@rickosborne/guard

Rick Osborne's collection of type guards.

• typescript
• guards
• type guards

rickosborne

• 2025.3.12 • a month ago • 9 dependents • CC-BY-NC-SA-4.0published version 2025.3.12, a month ago9 dependents licensed under $CC-BY-NC-SA-4.0

app-usage-events-react

A set of types, type checks, and type guards for simpler, safer, and easier to read code.

• types
• type guards
• guards
• type checks
• checks
• type
• checking
• typescript

uladkasach

• 1.1.14 • a year ago • 0 dependentspublished version 1.1.14, a year ago0 dependents

@konfirm/guard

Building blocks for type guards

• type guards
• guards

rogier.spieker

• 2.0.2 • 2 years ago • 3 dependents • MITpublished version 2.0.2, 2 years ago3 dependents licensed under $MIT

@mikelgo/ts-guards

typescript guards

• TypeScript
• TS
• Utils
• Utilities
• type-guards
• guards
• type guards

mikelgo

• 1.1.0 • 4 years ago • 0 dependents • MITpublished version 1.1.0, 4 years ago0 dependents licensed under $MIT

helpful-errors

A standard set of errors and methods for simpler, safer, and easier to read code.

• types
• type guards
• guards
• type checks
• checks
• type
• checking
• typescript

uladkasach

• 1.3.8 • 4 months ago • 1 dependents • MITpublished version 1.3.8, 4 months ago1 dependents licensed under $MIT

type-guard-utils

Decorators, rxjs operators, and utility functions for doing runtime checks on returned types against type guard.

• typescript
• type guards
• typescript utilities
• runtime type checks
• rxjs type checks
• http validation
• data validation
• api types

chrisczach

• 0.1.2 • 4 years ago • 0 dependents • MITpublished version 0.1.2, 4 years ago0 dependents licensed under $MIT

app-usage-events-emitter-react

A set of types, type checks, and type guards for simpler, safer, and easier to read code.

• types
• type guards
• guards
• type checks
• checks
• type
• checking
• typescript

uladkasach

• 1.0.1 • 2 years ago • 0 dependentspublished version 1.0.1, 2 years ago0 dependents