groop
v0.1.32
Published
Normalize an array of objects by a property.
Downloads
13
Readme
groop
Normalize an array of objects by a property.
Both lists and single objects can be normalized.
Usage
import { createArrayGroup } from '@dankreiger/groop';
const listGroup = [
{ name: 'Dan', age: 5 },
{ name: 'Puppy', age: 5 },
{ name: 'Woofer', age: 22 },
{ name: 'Dan', age: 20 },
];
const byAge = createArrayGroup('age');
byAge(listGroup);
/**
* {
* entities: {
* '20': [
* {
* age: 20,
* name: 'Dan',
* },
* ],
* '22': [
* {
* age: 22,
* name: 'Woofer',
* },
* ],
* '5': [
* {
* age: 5,
* name: 'Dan',
* },
* {
* age: 5,
* name: 'Puppy',
* },
* ],
* },
* ids: [5, 22, 20],
* }
*/
const byName = createArrayGroup('name');
byName(listGroup);
/**
* {
* entities: {
* Dan: [
* { name: 'Dan', age: 5 },
* { name: 'Dan', age: 20 }
* ],
* Puppy: [ { name: 'Puppy', age: 5 } ],
* Woofer: [ { name: 'Woofer', age: 22 } ]
* },
* ids: [ 'Dan', 'Puppy', 'Woofer' ]
* }
*/
import { createGroup } from '@dankreiger/groop';
const singleGroup = { name: 'Dan', age: 5 };
const byAge = createGroup('age');
byAge(singleGroup);
/**
* {
* entities: {
* '5': { name: 'Dan', age: 5 }
* },
* ids: [5]
* }
*/
const byName = createGroup('name');
byName(singleGroup);
/**
* {
* entities: {
* Dan: { name: 'Dan', age: 5 }
* },
* ids: ['Dan']
* }
*/