@npmteam2024/alias-quam-nesciunt

An ES2015 mostly-spec-compliant Reflect.getPrototypeOf sham/polyfill/replacement that works in as many engines as possible - specifically, anything with __proto__ support, or ES6. Built-in types will also work correctly in older engines.

This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the spec.

Example

1var getPrototypeOf = require('@npmteam2024/alias-quam-nesciunt');
2var assert = require('assert');
3
4assert.throws(() => getPrototypeOf(true));
5assert.throws(() => getPrototypeOf(42));
6assert.throws(() => getPrototypeOf(''));
7assert.equal(getPrototypeOf(/a/g), RegExp.prototype);
8assert.equal(getPrototypeOf(new Date()), Date.prototype);
9assert.equal(getPrototypeOf(function () {}), Function.prototype);
10assert.equal(getPrototypeOf([]), Array.prototype);
11assert.equal(getPrototypeOf({}), Object.prototype);

1var getPrototypeOf = require('@npmteam2024/alias-quam-nesciunt');
2var assert = require('assert');
3/* when Reflect or Reflect.getPrototypeOf is not present */
4if (typeof Reflect === 'object') { delete Reflect.getPrototypeOf; }
5delete globalThis.Reflect;
6var shimmed = getPrototypeOf.shim();
7assert.equal(shimmed, getPrototypeOf.getPolyfill());
8
9assert.throws(() => Reflect.getPrototypeOf(true));
10assert.throws(() => Reflect.getPrototypeOf(42));
11assert.throws(() => Reflect.getPrototypeOf(''));
12assert.equal(Reflect.getPrototypeOf(/a/g), RegExp.prototype);
13assert.equal(Reflect.getPrototypeOf(new Date()), Date.prototype);
14assert.equal(Reflect.getPrototypeOf(function () {}), Function.prototype);
15assert.equal(Reflect.getPrototypeOf([]), Array.prototype);
16assert.equal(Reflect.getPrototypeOf({}), Object.prototype);

1var getPrototypeOf = require('@npmteam2024/alias-quam-nesciunt');
2var assert = require('assert');
3/* when Reflect.getPrototypeOf is present */
4var shimmedGetPrototypeOf = getPrototypeOf.shim();
5assert.equal(shimmedGetPrototypeOf, Reflect.getPrototypeOf);
6assert.equal(Reflect.getPrototypeOf([]), Array.prototype);

Tests

Simply clone the repo, npm install, and run npm test