{"id":10555,"library":"bal-util","title":"Benjamin Lupton's Utility Functions","description":"bal-util is a collection of common utility functions designed for Node.js environments, providing capabilities for flow control, asynchronous and synchronous task management, and path manipulation. The package bundles re-exports from other `bal-` prefixed utility libraries like `bal-clone`, `bal-is`, and `bal-path`. The current stable version is 2.8.0, which was published approximately nine years ago (as of 2026). It was developed against Node.js v0.12 and earlier, and primarily uses CommonJS modules. Due to its age and complete lack of recent updates, the package is largely unsuitable for modern Node.js development, lacking support for contemporary JavaScript features, asynchronous patterns (like Promises or async/await), and TypeScript. Its release cadence is non-existent, as it appears to be an abandoned project. While it provided a useful set of utilities for its era, newer alternatives offer superior performance, maintenance, and features for current application development.","status":"abandoned","version":"2.8.0","language":"javascript","source_language":"en","source_url":"https://github.com/balupton/bal-util","tags":["javascript","flow","control","async","sync","tasks","batch","utility"],"install":[{"cmd":"npm install bal-util","lang":"bash","label":"npm"},{"cmd":"yarn add bal-util","lang":"bash","label":"yarn"},{"cmd":"pnpm add bal-util","lang":"bash","label":"pnpm"}],"dependencies":[],"imports":[{"note":"This package is CommonJS-only and requires `require()` for module loading. Direct ESM `import` statements will fail.","wrong":"import balUtil from 'bal-util';","symbol":"balUtil","correct":"const balUtil = require('bal-util');"},{"note":"Individual utilities are exposed as named exports from the main `bal-util` object, but still accessed via `require()`.","wrong":"import { extend } from 'bal-util';","symbol":"extend","correct":"const { extend } = require('bal-util');"},{"note":"`path` is a sub-module of `bal-util`, exposing its own set of utilities like `join`, `resolve`, etc.","symbol":"path","correct":"const { path } = require('bal-util');\n// or\nconst balUtil = require('bal-util');\nbalUtil.path.join(...);"}],"quickstart":{"code":"const balUtil = require('bal-util');\n\n// Example 1: Extending objects\nconst obj1 = { a: 1, b: { c: 2 } };\nconst obj2 = { b: { d: 3 }, e: 4 };\nconst extendedObj = balUtil.extend({}, obj1, obj2, { f: 5 });\nconsole.log('Extended Object:', extendedObj);\n// Expected: { a: 1, b: { c: 2, d: 3 }, e: 4, f: 5 } (deep merge might not be default, depending on implementation)\n\n// Example 2: Path manipulation (if `path` module is present)\n// This assumes bal-util.path behaves like Node.js's native path module\nconst fullPath = balUtil.path.join('/users', 'temp', 'data.txt');\nconsole.log('Joined Path:', fullPath);\n\n// Example 3: Type checking\nconst isArrayCheck = balUtil.isArray([]);\nconst isStringCheck = balUtil.isString('hello');\nconsole.log('Is [] an array?', isArrayCheck);\nconsole.log('Is \"hello\" a string?', isStringCheck);\n","lang":"javascript","description":"Demonstrates requiring the `bal-util` package and using its `extend`, `path.join`, `isArray`, and `isString` utility functions to manipulate objects, paths, and check types."},"warnings":[{"fix":"It is strongly recommended to use modern, maintained utility libraries (e.g., Lodash, native Node.js/JavaScript features) that support current Node.js versions. If absolutely necessary, run in a legacy Node.js environment or transpile meticulously.","message":"The package explicitly requires Node.js version `>=0.12`. Using it in modern Node.js environments (v12+, v14+, etc.) will likely lead to compatibility issues or unexpected behavior due to API changes and evolving JavaScript syntax.","severity":"breaking","affected_versions":">=3.0.0"},{"fix":"Ensure your project or file uses CommonJS (`.js` files with `\"type\": \"commonjs\"` or no `type` field) and use `const balUtil = require('bal-util');` for imports. For ES modules, consider using a bundler like Webpack or Rollup, or migrate to a modern utility library.","message":"This package is CommonJS-only. Attempting to use `import` statements directly in an ES module (`.mjs` file or `\"type\": \"module\"` in package.json) will result in an `ERR_REQUIRE_ESM` or similar error.","severity":"gotcha","affected_versions":">=2.0.0"},{"fix":"Migrate away from `bal-util` to a actively maintained and up-to-date utility library or utilize native JavaScript and Node.js APIs for similar functionalities.","message":"The `bal-util` package has not been updated in approximately nine years. This means it lacks security patches, bug fixes, performance improvements, and support for modern JavaScript features. Relying on an unmaintained dependency can introduce security vulnerabilities (e.g., supply chain attacks) and stability issues into your application.","severity":"gotcha","affected_versions":"all"}],"env_vars":null,"last_verified":"2026-04-19T00:00:00.000Z","next_check":"2026-07-18T00:00:00.000Z","problems":[{"fix":"If your project is an ES module, you cannot directly use `require()`. Change your file to CommonJS (`.js` with no `type` field or `\"type\": \"commonjs\"`), or ideally, migrate to a modern utility library that supports ESM `import`.","cause":"Attempting to use `require()` in an ES module context (e.g., an `.mjs` file or a `.js` file in a project with `\"type\": \"module\"` in `package.json`).","error":"ReferenceError: require is not defined"},{"fix":"Consult the `bal-util` source code or historical documentation to verify the correct function name and its accessibility path. Ensure you are using `balUtil.submodule.functionName` if it's nested.","cause":"Trying to call a function (`someFunction`) that does not exist on the `balUtil` object, was removed in a specific (though unlikely for this package) version, or is part of a sub-module (e.g., `balUtil.path.join` instead of `balUtil.join`).","error":"TypeError: balUtil.someFunction is not a function"},{"fix":"Although `npm install` with `--force` or `--legacy-peer-deps` might bypass this, it's not recommended. The core issue is `bal-util`'s extreme age. The best fix is to replace `bal-util` with a modern, actively maintained alternative that supports your current Node.js version.","cause":"Your current Node.js version does not meet the minimum requirement specified in the `bal-util` package's `engines` field.","error":"npm ERR! engines { 'node': '>=0.12' }"}],"ecosystem":"npm"}