group-array

WebJar for group-array

License

License

MIT
GroupId

GroupId

org.webjars.npm
ArtifactId

ArtifactId

group-array
Last Version

Last Version

0.3.3
Release Date

Release Date

Type

Type

jar
Description

Description

group-array
WebJar for group-array
Project URL

Project URL

http://webjars.org
Source Code Management

Source Code Management

https://github.com/doowb/group-array

Download group-array

How to add to project

<!-- https://jarcasting.com/artifacts/org.webjars.npm/group-array/ -->
<dependency>
    <groupId>org.webjars.npm</groupId>
    <artifactId>group-array</artifactId>
    <version>0.3.3</version>
</dependency>
// https://jarcasting.com/artifacts/org.webjars.npm/group-array/
implementation 'org.webjars.npm:group-array:0.3.3'
// https://jarcasting.com/artifacts/org.webjars.npm/group-array/
implementation ("org.webjars.npm:group-array:0.3.3")
'org.webjars.npm:group-array:jar:0.3.3'
<dependency org="org.webjars.npm" name="group-array" rev="0.3.3">
  <artifact name="group-array" type="jar" />
</dependency>
@Grapes(
@Grab(group='org.webjars.npm', module='group-array', version='0.3.3')
)
libraryDependencies += "org.webjars.npm" % "group-array" % "0.3.3"
[org.webjars.npm/group-array "0.3.3"]

Dependencies

compile (6)

Group / Artifact Type Version
org.webjars.npm : arr-flatten jar [1.0.1,2)
org.webjars.npm : split-string jar [1.0.1,2)
org.webjars.npm : union-value jar [0.2.3,0.3)
org.webjars.npm : kind-of jar [3.1.0,4)
org.webjars.npm : for-own jar [0.1.4,0.2)
org.webjars.npm : get-value jar [2.0.6,3)

Project Modules

There are no modules declared in this project.

group-array NPM version NPM monthly downloads NPM total downloads Linux Build Status

Group array of objects into lists.

Please consider following this project's author, Brian Woodward, and consider starring the project to show your ❤️ and support.

(TOC generated by verb using markdown-toc)

Install

Install with npm:

$ npm install --save group-array

Usage

var groupArray = require('group-array');

Examples

var arr = [
  {tag: 'one', content: 'A'},
  {tag: 'one', content: 'B'},
  {tag: 'two', content: 'C'},
  {tag: 'two', content: 'D'},
  {tag: 'three', content: 'E'},
  {tag: 'three', content: 'F'}
];

// group by the `tag` property
groupArray(arr, 'tag');

results in:

{
  one: [
    {tag: 'one', content: 'A'},
    {tag: 'one', content: 'B'}
  ],
  two: [
    {tag: 'two', content: 'C'},
    {tag: 'two', content: 'D'}
  ],
  three: [
    {tag: 'three', content: 'E'},
    {tag: 'three', content: 'F'}
  ]
}

Group by multiple, deeply nested properties

// given an array of object, like blog posts...
var arr = [
  { data: { year: '2016', tag: 'one', month: 'jan', day: '01'}, content: '...'},
  { data: { year: '2016', tag: 'one', month: 'jan', day: '01'}, content: '...'},
  { data: { year: '2016', tag: 'one', month: 'jan', day: '02'}, content: '...'},
  { data: { year: '2016', tag: 'one', month: 'jan', day: '02'}, content: '...'},
  { data: { year: '2016', tag: 'one', month: 'feb', day: '10'}, content: '...'},
  { data: { year: '2016', tag: 'one', month: 'feb', day: '10'}, content: '...'},
  { data: { year: '2016', tag: 'one', month: 'feb', day: '12'}, content: '...'},
  { data: { year: '2016', tag: 'one', month: 'feb', day: '12'}, content: '...'},
  { data: { year: '2016', tag: 'two', month: 'jan', day: '14'}, content: '...'},
  { data: { year: '2016', tag: 'two', month: 'jan', day: '14'}, content: '...'},
  { data: { year: '2016', tag: 'two', month: 'jan', day: '16'}, content: '...'},
  { data: { year: '2016', tag: 'two', month: 'jan', day: '16'}, content: '...'},
  { data: { year: '2016', tag: 'two', month: 'feb', day: '18'}, content: '...'},
  { data: { year: '2017', tag: 'two', month: 'feb', day: '18'}, content: '...'},
  { data: { year: '2017', tag: 'two', month: 'feb', day: '10'}, content: '...'},
  { data: { year: '2017', tag: 'two', month: 'feb', day: '10'}, content: '...'},
  { data: { year: '2017', tag: 'three', month: 'jan', day: '01'}, content: '...'},
  { data: { year: '2017', tag: 'three', month: 'jan', day: '01'}, content: '...'},
  { data: { year: '2017', tag: 'three', month: 'jan', day: '02'}, content: '...'},
  { data: { year: '2017', tag: 'three', month: 'jan', day: '02'}, content: '...'},
  { data: { year: '2017', tag: 'three', month: 'feb', day: '01'}, content: '...'},
  { data: { year: '2017', tag: 'three', month: 'feb', day: '01'}, content: '...'},
  { data: { year: '2017', tag: 'three', month: 'feb', day: '02'}, content: '...'},
  { data: { year: '2017', tag: 'three', month: 'feb', day: '02'}, content: '...'}
]

Pass a list or array of properties:

groupArray(arr, 'data.year', 'data.tag', 'data.month', 'data.day');

Results in something like this: (abbreviated)

{ '2016': 
   { one: 
      { jan: 
         { '01': 
            [ { data: { year: '2016', tag: 'one', month: 'jan', day: '01' },
                content: '...' },
              { data: { year: '2016', tag: 'one', month: 'jan', day: '01' },
                content: '...' } ],
           '02': 
            [ { data: { year: '2016', tag: 'one', month: 'jan', day: '02' },
                content: '...' },
              { data: { year: '2016', tag: 'one', month: 'jan', day: '02' },
                content: '...' } ] },
        feb: 
         { '10': 
            [ { data: { year: '2016', tag: 'one', month: 'feb', day: '10' },
                content: '...' },
              { data: { year: '2016', tag: 'one', month: 'feb', day: '10' },
                content: '...' } ],
           '12': 
            [ { data: { year: '2016', tag: 'one', month: 'feb', day: '12' },
                content: '...' },
              { data: { year: '2016', tag: 'one', month: 'feb', day: '12' },
                content: '...' } ] } },
     two: 
      { jan: 
         { '14': 
            [ { data: { year: '2016', tag: 'two', month: 'jan', day: '14' },
                content: '...' },
              { data: { year: '2016', tag: 'two', month: 'jan', day: '14' },
                content: '...' } ],
           '16': 
            [ { data: { year: '2016', tag: 'two', month: 'jan', day: '16' },
                content: '...' },
              { data: { year: '2016', tag: 'two', month: 'jan', day: '16' },
                content: '...' } ] },
        feb: 
         { '18': 
            [ { data: { year: '2016', tag: 'two', month: 'feb', day: '18' },
                content: '...' } ] } } },
  '2017': 
   { two: 
      { feb: 
         { '10': 
            [ { data: { year: '2017', tag: 'two', month: 'feb', day: '10' },
                content: '...' },
              { data: { year: '2017', tag: 'two', month: 'feb', day: '10' },
                content: '...' } ],
           '18': 
            [ { data: { year: '2017', tag: 'two', month: 'feb', day: '18' },
                content: '...' } ] } },
     three: 
      { jan: 
         { '01': 
            [ { data: { year: '2017', tag: 'three', month: 'jan', day: '01' },
                content: '...' },
              { data: { year: '2017', tag: 'three', month: 'jan', day: '01' },
                content: '...' } ],
           '02': 
            [ { data: { year: '2017', tag: 'three', month: 'jan', day: '02' },
                content: '...' },
              { data: { year: '2017', tag: 'three', month: 'jan', day: '02' },
                content: '...' } ] },
        feb: 
         { '01': 
            [ { data: { year: '2017', tag: 'three', month: 'feb', day: '01' },
                content: '...' },
              { data: { year: '2017', tag: 'three', month: 'feb', day: '01' },
                content: '...' } ],
           '02': 
            [ { data: { year: '2017', tag: 'three', month: 'feb', day: '02' },
                content: '...' },
              { data: { year: '2017', tag: 'three', month: 'feb', day: '02' },
                content: '...' } ] } } } }

About

Contributing

Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.

Running Tests

Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:

$ npm install && npm test
Building docs

(This project's readme.md is generated by verb, please don't edit the readme directly. Any changes to the readme must be made in the .verb.md readme template.)

To generate the readme, run the following command:

$ npm install -g verbose/verb#dev verb-generate-readme && verb

Related projects

You might also be interested in these projects:

Contributors

Commits Contributor
32 doowb
13 jonschlinkert
2 johlym
1 cperryk

Author

Brian Woodward

License

Copyright © 2019, Brian Woodward. Released under the MIT License.


This file was generated by verb-generate-readme, v0.8.0, on July 22, 2019.

Versions

Version
0.3.3