core-util-is

The `util.is*` functions introduced in Node v0.12.

v1.0.3 URL: https://unpkg.com/core-util-is@1.0.3/lib/util.js

util isBuffer isArray isNumber isString isRegExp isThis isThat polyfill

@nevware21/ts-utils

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

v0.12.5 URL: https://unpkg.com/@nevware21/ts-utils@0.12.5/dist/es5/main/ts-utils.js

ts typescript js javascript minification minify utils helper node browser worker webworker polyfill ES5 ES6 ES7 ES2015 ES2016 ES2017 ES2018 ES2019 ES2020 ECMAScript 5 ECMAScript 6 ECMAScript 7 ECMAScript 2015 ECMAScript 2016 ECMAScript 2017 ECMAScript 2018 ECMAScript 2019 ECMAScript 2020 ECMAScript 2021 ECMAScript 2022 ECMAScript 2023 getDocument getGlobal getHistory getInst getNavigator getWindow hasDocument hasHistory hasNavigator hasWindow isNode isWebWorker isArray isArrayBuffer isBlob isBoolean isDate isError isFile isFormData isFunction isIterable isIterator isNullOrUndefined isNumber isObject isPromise isPromiseLike isThenable isRegExp isStrictNullOrUndefined isStrictUndefined isString isTypeof isUndefined hasValue isDefined isNotTruthy isTruthy string left strLeft string right strRight normalize js name letter case lettercase camel case camelcase kebab case kebabcase snake case snakecase uppercase lowercase custom error asString hasOwn defineProperty timeout idle timer timer interval includes string contains html encode deep-copy deep-clone throttle debounce memoize utility-functions cross-platform environment-detection tree-shaking bundle-size-optimization esm commonjs umd type-guards object-manipulation array-utilities string-manipulation promise-utilities async-utilities zero-dependency universal isomorphic cross-runtime environment-agnostic lodash-alternative underscore-alternative ramda-alternative starts-with ends-with string-padding string-trim string-repeat array-map array-reduce array-filter array-find object-copy object-keys lightweight performance-optimized type-safe

typechecker

Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)

v9.3.0 URL: https://unpkg.com/typechecker@9.3.0/index.cjs

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array assert assertion async async function async-function asyncFunction bool boolean browser check check-type checking class class-identifier class-instance compare conventional class conventional-class conventionalClass date define-type deno deno-edition deno-entry denoland empty empty array empty keys empty map empty plain object empty-array empty-keys empty-map empty-plain-object emptyArray emptyKeys emptyMap emptyPlainObject error es2022 es5 function get object type get type get-object-type get-type getObjectType getType instanceof is is arguments is array is async is async function is bool is boolean is class is conventional class is date is empty array is empty keys is empty map is empty plain object is empty weak map is error is function is map is native class is null is nullish is number is object is plain object is regexp is string is sync is sync function is undefined is weak map is-arguments is-array is-async is-async-function is-bool is-boolean is-class is-conventional-class is-date is-empty-array is-empty-keys is-empty-map is-empty-plain-object is-empty-weak-map is-error is-function is-map is-native-class is-null is-nullish is-number is-object is-plain-obj is-plain-object is-regexp is-string is-sync is-sync-function is-undefined is-weak-map isArguments isArray isAsyncFunction isBool isBoolean isClass isConventionalClass isDate isEmptyArray isEmptyKeys isEmptyMap isEmptyPlainObject isEmptyWeakMap isError isFunction isMap isNativeClass isNull isNullish isNumber isObject isRegExp isString isSync isSyncFunction isUndefined isWeakMap javascript javascript-type keys kind map module native native class native-class nativeClass node null number object plain plain object plain objects plain-object plain-objects plainObject primitive primitive-types pure regex regexp regular expression simple string sync syncFunction test type type-check type-checker type-checking typechecker typed typeguards typeof types typescript undefined util utility validate validation vanilla verify weak map weak-map weakMap what-type

@phun-ky/typeof

A set of JavaScript helper functions to check for types

v1.2.17 URL: https://unpkg.com/@phun-ky/typeof@1.2.17/dist/typeof.js

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types string number object javascript typeof isString isNotString isNumber isNotNumber isBoolean isNotBoolean isUndefined isNotUndefined isObjectStrict isObjectLoose isClass isBuiltInConstructor isInstanceOfUnknownClass

core-util-is

The `util.is*` functions introduced in Node v0.12.

@nevware21/ts-utils

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

typechecker

Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)

@daybrush/utils

utils for daybrush

@phun-ky/typeof

A set of JavaScript helper functions to check for types