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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| require('../../modules/es.object.create'); | ||
| require('../../modules/esnext.object.group-by'); | ||
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| var path = require('../../internals/path'); | ||
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| module.exports = path.Object.groupBy; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,29 +1,30 @@ | ||
| 'use strict'; | ||
| var $ = require('../internals/export'); | ||
| var call = require('../internals/function-call'); | ||
| var uncurryThis = require('../internals/function-uncurry-this'); | ||
| var isCallable = require('../internals/is-callable'); | ||
| var aCallable = require('../internals/a-callable'); | ||
| var requireObjectCoercible = require('../internals/require-object-coercible'); | ||
| var iterate = require('../internals/iterate'); | ||
| var Map = require('../internals/map-helpers').Map; | ||
| var MapHelpers = require('../internals/map-helpers'); | ||
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| var Map = MapHelpers.Map; | ||
| var has = MapHelpers.has; | ||
| var get = MapHelpers.get; | ||
| var set = MapHelpers.set; | ||
| var push = uncurryThis([].push); | ||
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| // `Map.groupBy` method | ||
| // https://github.com/tc39/proposal-collection-methods | ||
| // https://github.com/tc39/proposal-array-grouping | ||
| $({ target: 'Map', stat: true, forced: true }, { | ||
| groupBy: function groupBy(iterable, keyDerivative) { | ||
| var C = isCallable(this) ? this : Map; | ||
| var newMap = new C(); | ||
| aCallable(keyDerivative); | ||
| var has = aCallable(newMap.has); | ||
| var get = aCallable(newMap.get); | ||
| var set = aCallable(newMap.set); | ||
| iterate(iterable, function (element) { | ||
| var derivedKey = keyDerivative(element); | ||
| if (!call(has, newMap, derivedKey)) call(set, newMap, derivedKey, [element]); | ||
| else push(call(get, newMap, derivedKey), element); | ||
| groupBy: function groupBy(items, callbackfn) { | ||
| requireObjectCoercible(items); | ||
| aCallable(callbackfn); | ||
| var map = new Map(); | ||
| var k = 0; | ||
| iterate(items, function (value) { | ||
| var key = callbackfn(value, k++); | ||
| if (!has(map, key)) set(map, key, [value]); | ||
| else push(get(map, key), value); | ||
| }); | ||
| return newMap; | ||
| return map; | ||
| } | ||
| }); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,29 @@ | ||
| 'use strict'; | ||
| var $ = require('../internals/export'); | ||
| var getBuiltIn = require('../internals/get-built-in'); | ||
| var uncurryThis = require('../internals/function-uncurry-this'); | ||
| var aCallable = require('../internals/a-callable'); | ||
| var requireObjectCoercible = require('../internals/require-object-coercible'); | ||
| var has = require('../internals/has-own-property'); | ||
| var toPropertyKey = require('../internals/to-property-key'); | ||
| var iterate = require('../internals/iterate'); | ||
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| var create = getBuiltIn('Object', 'create'); | ||
| var push = uncurryThis([].push); | ||
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| // `Object.groupBy` method | ||
| // https://github.com/tc39/proposal-array-grouping | ||
| $({ target: 'Object', stat: true, forced: true }, { | ||
| groupBy: function groupBy(items, callbackfn) { | ||
| requireObjectCoercible(items); | ||
| aCallable(callbackfn); | ||
| var obj = create(null); | ||
| var k = 0; | ||
| iterate(items, function (value) { | ||
| var key = toPropertyKey(callbackfn(value, k++)); | ||
| if (!has(obj, key)) obj[key] = [value]; | ||
| else push(obj[key], value); | ||
| }); | ||
| return obj; | ||
| } | ||
| }); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,3 @@ | ||
| // https://github.com/tc39/proposal-array-grouping | ||
| require('../modules/esnext.map.group-by'); | ||
| require('../modules/esnext.object.group-by'); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| import { createIterable } from '../helpers/helpers'; | ||
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| QUnit.test('Object.groupBy', assert => { | ||
| const { groupBy, getPrototypeOf, entries } = Object; | ||
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| assert.isFunction(groupBy); | ||
| assert.arity(groupBy, 2); | ||
| assert.name(groupBy, 'groupBy'); | ||
| assert.looksNative(groupBy); | ||
| assert.nonEnumerable(Object, 'groupBy'); | ||
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| assert.same(getPrototypeOf(groupBy([], it => it)), null); | ||
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| assert.deepEqual(entries(groupBy([], it => it)), []); | ||
| assert.deepEqual(entries(groupBy([1, 2], it => it ** 2)), [['1', [1]], ['4', [2]]]); | ||
| assert.deepEqual(entries(groupBy([1, 2, 1], it => it ** 2)), [['1', [1, 1]], ['4', [2]]]); | ||
| assert.deepEqual(entries(groupBy(createIterable([1, 2]), it => it ** 2)), [['1', [1]], ['4', [2]]]); | ||
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| const element = {}; | ||
| groupBy([element], function (it, i) { | ||
| assert.same(arguments.length, 2); | ||
| assert.same(it, element); | ||
| assert.same(i, 0); | ||
| }); | ||
| }); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| import { createIterable } from '../helpers/helpers'; | ||
| import groupBy from 'core-js-pure/full/object/group-by'; | ||
| import getPrototypeOf from 'core-js-pure/es/object/get-prototype-of'; | ||
| import entries from 'core-js-pure/es/object/entries'; | ||
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| QUnit.test('Object.groupBy', assert => { | ||
| assert.isFunction(groupBy); | ||
| assert.arity(groupBy, 2); | ||
| assert.name(groupBy, 'groupBy'); | ||
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| assert.same(getPrototypeOf(groupBy([], it => it)), null); | ||
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| assert.deepEqual(entries(groupBy([], it => it)), []); | ||
| assert.deepEqual(entries(groupBy([1, 2], it => it ** 2)), [['1', [1]], ['4', [2]]]); | ||
| assert.deepEqual(entries(groupBy([1, 2, 1], it => it ** 2)), [['1', [1, 1]], ['4', [2]]]); | ||
| assert.deepEqual(entries(groupBy(createIterable([1, 2]), it => it ** 2)), [['1', [1]], ['4', [2]]]); | ||
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| const element = {}; | ||
| groupBy([element], function (it, i) { | ||
| assert.same(arguments.length, 2); | ||
| assert.same(it, element); | ||
| assert.same(i, 0); | ||
| }); | ||
| }); |