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The definitive collection of is* functions for runtime type checking. Lodash-compatible, tree-shakable, with types.
[![License: MIT](https://img.shields.io/badge/License-MIT-green.svg)](https://opensource.org/licenses/MIT) [![TypeScript](https://img.shields.io/badge/%3C%2F%3E-TypeScript-%230074c1.svg)](http://www.typescriptlang.org/) [![Socket Badge](https://socket.dev
- tacit
- validator
- variables
- width
- three
- fast
- kinesis
- typedarrays
- airbnb
- toobject
- ES6
- higher-order
- zero
- encryption
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Base ndarray assertion utilities.
- stdlib
- stdtypes
- types
- data
- structures
- array
- vector
- matrix
- ndarray
- multidimensional
- buffer
- base
- assert
- assertion
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A lean, zero dependency library to provide a useful base for your project. Checksums, cryptography, codecs, date-times, error-checking-codes, logging, pseudorandom number generation. The tools you need for any project. Secure build pipeline, provenance
- ECMAScript 2017
- ECMAScript 2023
- code points
- state
- cloudsearch
- assertion
- compare
- readable
- dir
- _.extend
- react
- link
- tape
- less compiler
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A Node JS implementation of the CSS Object Model [CSSStyleDeclaration interface](https://www.w3.org/TR/cssom-1/#the-cssstyledeclaration-interface).
- properties
- environment
- pretty
- getOwnPropertyDescriptor
- URLSearchParams
- web
- ES5
- core-js
- listeners
- BigInt64Array
- descriptors
- ascii
- getintrinsic
- redact
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> Type-safe CLI library with no runtime dependencies
- packages
- concatMap
- rapid
- install
- workspace:*
- bind
- sigint
- weakset
- robust
- throttle
- less mixins
- matchAll
- promises
- 3d
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Checks if there are no duplicate values.
i18n for countries
[![github actions][actions-image]][actions-url] [![coverage][codecov-image]][codecov-url] [![dependency status][5]][6] [![dev dependency status][7]][8] [![License][license-image]][license-url] [![Downloads][downloads-image]][downloads-url]
- lru
- columns
- mimetypes
- unicode
- input
- warning
- helpers
- class-validator
- wait
- variables
- type
- args
- TypeBox
- ES2020
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> Generates Typescript/Javascript [decoders](https://decoders.cc) source code expressions from JSON schema specifications.
- is
- helpers
- language
- ES5
- cloudfront
- rapid
- random
- circular
- installer
- ECMAScript 2020
- protobuf
- command-line
- json-schema-validator
- css-in-js
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Test if a value is a 64-bit or 128-bit complex number.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- is
- iscomplex
- complex
- complex64
- complex128
- 64-bit
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2 functions that check if argument is undefined or null
Checks is array is empty.
Check if `npm-shrinkwrap.json` is present in the working directory
Check if a string is a valid IP address
Test if a value is a duration string.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- string
- str
- is
- isduration
- duration
- validate
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Test if a value is PRNG-like.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- is
- isprng
- isprnglike
- prng
- pseudorandom
- number
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Return a function which tests if every element in a typed array passes a test condition.
Test if a value is a valid typed array length.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- typedarray
- typed-array
- typed
- array
- arr
- length
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Check if a file/folder is hidden on node js that works on any platform.