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object.groupby (1.0.3)

Published 2026-02-24 14:02:05 +00:00 by atheaadmin

Installation

Setup this registry in your project .npmrc file:

registry=

To install the package using npm, run the following command:

npm install object.groupby@1.0.3

or add it to the package.json file:

"object.groupby": "1.0.3"

For more information on the npm registry, see the documentation.

About this package

object.groupby

An ESnext spec-compliant Object.groupBy shim/polyfill/replacement that works as far down as ES3.

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

Getting started

npm install --save object.groupby

Usage/Examples

var groupBy = require('object.groupby');
var assert = require('assert');

var arr = [0, 1, 2, 3, 4, 5];
var parity = function (x) { return x % 2 === 0 ? 'even' : 'odd'; };

var results = groupBy(arr, function (x, i) {
    assert.equal(x, arr[i]);
    return parity(x);
});

assert.deepEqual(results, {
    __proto__: null,
    even: [0, 2, 4],
    odd: [1, 3, 5],
});

var groupBy = require('object.groupby');
var assert = require('assert');
/* when Object.groupBy is not present */
delete Object.groupBy;
var shimmed = groupBy.shim();

assert.equal(shimmed, groupBy.getPolyfill());
assert.deepEqual(Object.groupBy(arr, parity), groupBy(arr, parity));

var groupBy = require('object.groupby');
var assert = require('assert');
/* when Array#group is present */
var shimmed = groupBy.shim();

assert.equal(shimmed, Object.groupBy);
assert.deepEqual(Object.groupBy(arr, parity), groupBy(arr, parity));

Tests

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

Dependencies

Dependencies

ID	Version
call-bind	^1.0.7
define-properties	^1.2.1
es-abstract	^1.23.2

Development Dependencies

ID	Version
@es-shims/api	^2.4.2
@ljharb/eslint-config	^21.1.0
aud	^2.0.4
auto-changelog	^2.4.0
es-value-fixtures	^1.4.2
eslint	=8.8.0
evalmd	^0.0.19
for-each	^0.3.3
functions-have-names	^1.2.3
in-publish	^2.0.1
npmignore	^0.3.1
nyc	^10.3.2
object-inspect	^1.13.1
safe-publish-latest	^2.0.0
tape	^5.7.5

Keywords

ecmascript javascript polyfill shim es-shim API array object group groupBy

Details

npm

2026-02-24 14:02:05 +00:00

0

Jordan Harband

Project Site

MIT

latest

5.7 KiB

Assets (1)

object.groupby-1.0.3.tgz 5.7 KiB

Versions (1) View all

1.0.3 2026-02-24