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The `util.is*` functions introduced in Node v0.12.
Comprehensive TypeScript/JavaScript utility library with cross-environment support (Node.js, browser, web worker) providing helper functions, polyfills (ES5-ES2023), type checking utilities, and optimized implementations for better minification and code r
Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)
- array
- assert
- assertion
- async
- async function
- async-function
- asyncFunction
- bool
- boolean
- browser
- check
- check-type
- checking
- class
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utils for daybrush
- daybrush
- utils
- dom
- css
- color
- rgba
- hsla
- splitSpace
- splitQuoto
- splitComma
- splitBracket
- camelize
- decamelize
- now
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A set of JavaScript helper functions to check for types
- types
- string
- number
- object
- javascript
- typeof
- isString
- isNotString
- isNumber
- isNotNumber
- isBoolean
- isNotBoolean
- isUndefined
- isNotUndefined
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Curried TypeScript type guards for primitive types and classes
- TypeScript
- type guards
- type
- guard
- isBoolean
- isNumber
- isString
- isSymbol
- isNull
- isUndefined
- isPrimitive
- isNonPrimitive
- is
- isLike
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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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Node toolkit adding some helpful functions: files, array, string, color, math ...
- screwdriver
- toolkit
- screwdriver toolkit
- node toolkit
- math functions
- file functions
- string functions
- array functions
- color functions
- time functions
- mkdir
- mkdirp
- mkdirpSync
- isBoolean
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A javascript library which allows to check javascript value types at runtime
- type-checker
- type
- type check
- types checker
- javascript type
- isArray
- isObject
- isNumber
- isString
- isDate
- isRegExp
- isFunction
- isBoolean
- isNull
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Utility library for javascript type checking.
- type checking
- type predicates
- isCallable
- isFunction
- isArrowFunction
- isArray
- isObject
- isBoolean
- isUndefined
- isNumber
- isString
- isSymbol
- isNull
- isMap
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Common typescript ready prototypes available in both CommonJS and ECMAScript
- server-side
- client-side
- common
- typescript
- prototype
- array
- all
- any
- append
- average
- chunk
- clone
- compact
- contains
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ExtremeJS Utilities
helper tools for javascript validation
- Full code documentation
- code coverage
- jest tests
- validation
- data validation
- data type checker
- lodash alternative
- utilities
- utils
- library helpers
- tools
- isEmpty
- isArray
- arraySize
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This library provides next util: isBoolean, isFunction, isNumber, isNumbers, isObject and isString, function can be object, number can not be NaN.
Collection of methods for check
- isArray
- isBoolean
- isDate
- isFunction
- isNull
- isNumber
- isObject
- isString
- isUndefined
- isElement
- isEmpty
- isEmail
- isNaN
- isRegExp
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Some util functions for personal use
A utility library for type checks and type manipulation in JavaScript and TypeScript, providing functions to determine types and verify values like null, undefined, boolean, number, and more.
- types
- getInstanceType
- getType
- isArray
- isAsyncFunction
- isAsyncGeneratorFunction
- isBigint
- isBoolean
- isDate
- isError
- isFunction
- isGeneratorFunction
- isInfinity
- isMap
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Basic type checker
- type
- check
- typecheck
- vanilla
- javascript
- typescript
- isArray
- isBoolean
- isDom
- isEmpty
- isFunction
- isInt
- isNumber
- isNumeric
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js 工具库
- createCache
- get
- deepClone
- isHTMLElement
- hasClass
- addClass
- getDataByAttribute
- isEmpty
- parseQuery
- getTypeof
- isString
- isBoolean
- isObject
- isArray
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