Utility libraries

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• @stdlib/assert-is-string-arrayTest if a value is an array of strings.
• prepend-filePrepend data to a file, creating it if it doesn't exist.
• @stdlib/assertStandard assertion utilities.
• @fusioncharts/utilsCollection of utilities for FusionCharts
• @stdlib/utils-define-nonenumerable-read-write-accessorDefine a non-enumerable read-write accessor.
• @stdlib/array-to-jsonReturn a JSON representation of a typed array.
• @solid-primitives/dateCollection of reactive primitives and utility functions, providing easier ways to deal with dates in SolidJS
• @stdlib/assert-is-typed-arrayTest if a value is a typed array.
• @stdlib/utils-function-nameDetermine a function's name.
• @stdlib/assert-has-function-name-supportDetect native function name support.
• mime-lookupA utility library for dealing with mime-types
• @stdlib/assert-is-complex-typed-arrayTest if a value is a complex typed array.
• angular-filterBunch of useful filters for angularJS(with no external dependencies!)
• @stdlib/utils-copyCopy or deep clone a value to an arbitrary depth.
• electron-utilUseful utilities for Electron apps and modules
• moderndashA Typescript-First utility library inspired by Lodash. Optimized for modern browsers.
• sugar-coreCore module for the Sugar Javascript utility library.
• to-constant-caseConvert a string to constant case.
• @stdlib/assert-is-errorTest if a value is an Error object.
• @stdlib/utils-property-symbolsReturn an array of an object's own symbol properties.
• underscore-template-loaderAn Underscore and Lodash template loader for Webpack
• @stdlib/utils-enumerable-propertiesReturn an array of an object's own enumerable property names and symbols.
• gulp-wrapA gulp plugin to wrap the stream contents with a template.
• find-webpackUtility to find webpack settings in react-scripts and other situations
• 101common javascript utils that can be required selectively that assume es5+
• wsemiA support package for web developer.
• @stdlib/cliCommand-line interface.
• has-onlyTells if the current Mocha execution is running only some tests that use .only
• @stdlib/utils-property-descriptorReturn a property descriptor for an object's own property.
• engineTemplate engine based on Lo-Dash template, but adds features like the ability to register helpers and more easily set data to be used as context in templates.
• @stdlib/utils-property-namesReturn an array of an object's own enumerable and non-enumerable property names.
• haraka-net-utilsharaka network utilities
• async-helpersUse async helpers in templates with engines that typically only handle sync helpers. Handlebars and Lodash have been tested.
• lodash.samplesizeThe lodash method `_.sampleSize` exported as a module.
• @stdlib/assert-is-positive-numberTest if a value is a number having a positive value.
• md-utils-tsTiny markdown utility functions for Typescript.
• @sapphire/utilitiesCommon JavaScript utilities for the Sapphire Community
• @blakek/curry🍛 Simple curry functions
• @svg-fns/svg2imgUtility functions to convert SVGs into different formats (Base64, Blob, Data URI, raster images). Works in client and server with optimal performance.
• layoutsWraps templates with layouts. Layouts can use other layouts and be nested to any depth. This can be used 100% standalone to wrap any kind of file with banners, headers or footer content. Use for markdown, HTML, handlebars views, lo-dash templates, etc. La
• helper-cacheEasily register and get helper functions to be passed to any template engine or node.js application. Methods for both sync and async helpers.
• chromatismA simple set of utility functions for colours.
• repo-utilsUtils for normalizing and formatting repo data.
• @stdlib/assert-has-has-instance-symbol-supportDetect native Symbol.hasInstance support.
• engine-cacheexpress.js inspired template-engine manager.
• templatesSystem for creating and managing template collections, and rendering templates with any node.js template engine. Can be used as the basis for creating a static site generator or blog framework.
• lodash.whereThe modern build of lodash’s `_.where` as a module.
• @openng/optimus-ui-utilsUtility functions and helpers for Optimus UI Libraries
• famulusJavaScript library that provides a useful functional programming helpers. Add your own.
• anyReturns `true` if a value exists in the given string, array or object.

• es-toolkit vs lodash
• remeda vs lodash
• ts-toolbelt vs type-fest
• ts-essentials vs type-fest
• type-fest vs utility-types
• type-fest vs just-diff
• es-toolkit vs remeda
• fp-ts vs true-myth
• ts-toolbelt vs ts-essentials
• fp-ts vs neverthrow
• just-diff vs true-myth
• neverthrow vs true-myth
• ts-toolbelt vs true-myth
• ts-toolbelt vs ts-prune
• type-fest vs true-myth
• utility-types vs just-diff