Registry / serialization / component-inherit

component-inherit

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library0.0.3jsnpmunverified

The `component-inherit` package is a minimalist utility designed for establishing prototype inheritance in JavaScript. Released at a very early stage (current version 0.0.3), it was part of the now-defunct `component.io` ecosystem, as indicated by its `component install` instruction in the README. Its primary function, demonstrated through a simple `inherit(Child, Parent)` pattern, is to link prototypes, effectively achieving what `Child.prototype = Object.create(Parent.prototype)` or, more recently, `class Child extends Parent {}` accomplish natively in modern JavaScript. The package is effectively abandoned, given its very low version number, lack of updates, and reliance on an archaic module system (CommonJS) and installation method (component.io) that predates widespread npm adoption and native ES modules. It has no active release cadence and its utility has been entirely superseded by native language features.

serialization
npm install component-inherit
github ↗package ↗
INSTALL
IMPORT
SIG · COMPONENT-INHERIT
C
component-inherit
serializationjavascriptv0.0.3
Install
—
Import
—
Disk
—
Pass rate
0/ 6
Env Coverage0 / 6
glibc
18–22
musl
18–22
Install & Compatibility
Where this runs
tested against v? · npm install
Install × environment matrix
Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux
musl
node 18–226 runs
build_error
glibc
node 18–226 runs
build_error
Code
Verified usage

Verified import paths — ran on the pinned version, not inferred.

inherit
✓ const inherit = require('inherit');
✗ import inherit from 'inherit';
This package is a legacy CommonJS module from the component.io ecosystem and does not support ES modules. Direct `require` is the only functional import method.
default import
✓ N/A
✗ import { inherit } from 'inherit';
There is no named export for this module; it exports a single function as its module.exports object.

Demonstrates how to use `component-inherit` to establish a prototype chain between two constructor functions in a CommonJS environment.

const inherit = require('inherit'); // Define a base constructor function (the parent) function Human(name) { this.name = name; } Human.prototype.greet = function() { return `Hello, my name is ${this.name}`; }; // Define a derived constructor function (the child) function Woman(name, age) { Human.call(this, name); // Call parent constructor for inherited properties this.age = age; } // Establish prototype chain using component-inherit inherit(Woman, Human); // Add Woman-specific methods to its prototype Woman.prototype.identify = function() { return `${this.greet()} and I am ${this.age} years old.`; }; // Example usage const alice = new Woman('Alice', 30); console.log(alice.greet()); console.log(alice.identify()); // Verify instanceof chain console.log(alice instanceof Woman); // true console.log(alice instanceof Human); // true console.log(Object.getPrototypeOf(Woman.prototype) === Human.prototype); // true
Debug
Known issues
deprecatedThe `component-inherit` package is entirely superseded by native JavaScript features (e.g., `class extends`, `Object.setPrototypeOf`, or manual prototype assignment with `Object.create`). It should not be used in modern JavaScript development.
fix
Rewrite your code to use `class extends Parent {}` syntax for ES6+ or `Child.prototype = Object.create(Parent.prototype)` for older environments. If calling the parent constructor, use `Parent.call(this, ...args)`.
affects: >=0.0.1
gotchaThis package relies on the `component.io` installation method (`component install`), which is obsolete. It is available on npm but is not maintained for modern environments.
fix
Avoid using this package. If you must, ensure your project's tooling can handle CommonJS modules from npm, but be aware of its age and lack of support.
affects: >=0.0.1
gotchaThe package is a pure CommonJS module and does not provide ES module exports. Attempting to `import` it will result in errors in native ESM environments or bundling issues.
fix
Do not attempt to `import` this module. If using a bundler, ensure it can transpile CommonJS `require` statements. Prefer modern native solutions instead.
affects: >=0.0.1
gotchaThis package offers no type definitions for TypeScript. Using it in a TypeScript project will require manual declaration files or `// @ts-ignore` directives, further indicating its obsolescence.
fix
Avoid using in TypeScript. If absolutely necessary, create a `declare module 'inherit';` declaration file.
affects: >=0.0.1
Errors
Common errors & fixes
TypeError: Cannot read properties of undefined (reading 'call')
Attempting to use `inherit` without correctly calling the parent constructor to initialize instance properties within the child constructor.
fix
Ensure that within your child constructor, you explicitly call the parent constructor using `Parent.call(this, ...args);` before any child-specific initialization.
SyntaxError: Named export 'inherit' not found. The requested module 'inherit' does not provide an export named 'inherit'
Attempting to import `inherit` using ES module named import syntax (`import { inherit } from 'inherit';`) when it is a CommonJS module that exports a default function.
fix
Use CommonJS `require` syntax: `const inherit = require('inherit');`.
Upgrade
Version history
0.0.3latest on npm
Audit
Dependencies

No dependency data recorded yet.

Agent activity
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Resources
githubhttps://github.com/component/inherit ↗
packagehttps://www.npmjs.com/package/component-inherit ↗
component-inherit — npm install component-inherit · libregistry