{"library":"core-util-is","type":"library","category":null,"description":"core-util-is is a JavaScript utility package that provides polyfills for the `util.is*` functions (e.g., `isBuffer`, `isArray`, `isNumber`, `isString`, `isRegExp`) which were originally introduced in Node.js v0.12. The package is currently at version 1.0.3 and has not been updated in approximately 4-5 years, with its last known publish around 2021. These `util.is*` functions themselves were largely deprecated in Node.js v4.0.0 (released in 2015), with Node.js core encouraging developers to use native JavaScript alternatives (like `Array.isArray()`) or more robust userland modules. The package serves primarily to maintain backward compatibility for legacy Node.js environments or applications that specifically rely on these older `util` methods. It has no direct runtime dependencies, making it a lightweight inclusion for its specific purpose.","language":"javascript","status":"abandoned","version":"1.0.3","tags":["javascript","util","isBuffer","isArray","isNumber","isString","isRegExp","isThis","isThat"],"last_verified":"Wed May 27","install":[{"cmd":"npm install core-util-is","imports":["const util = require('core-util-is');","const { isBuffer, isArray } = require('core-util-is');","const util = require('core-util-is');\nutil.isString('hello');"]},{"cmd":"yarn add core-util-is","imports":[]},{"cmd":"pnpm add core-util-is","imports":[]}],"homepage":null,"github":"https://github.com/isaacs/core-util-is","docs":null,"changelog":null,"pypi":null,"npm":"https://www.npmjs.com/package/core-util-is","openapi_spec":null,"status_page":null,"smithery":null,"compatibility":{"summary":{"python_range":"18–22","success_rate":0,"avg_install_s":null,"avg_import_s":null,"wheel_type":null},"url":"https://checklist.day/v1/registry/core-util-is/compatibility"}}