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@toss/utils is a package of utility functions which can be used in any environment, including React, Node.js, and Vanilla JS.

$ npm install @toss/utils
$ pnpm add @toss/utils
$ yarn add @toss/utils


  • Some of the functions in the lodash library is reimplemented in modern JavaScript, thereby providing the same features but reducing bundle size.
  • It is tree-shakable, since it fully supports ECMAScript modules.
  • Functions have types in TypeScript, preventing runtime errors.
  • It includes many validation or formatting functions for several values.