1.1.0 • Published 6 years ago
group-by-params v1.1.0
group-by-params
Simple grouping function for used by array which execute grouping by params.
Parameters can be either object keys or nested paths.
Install
npm install group-by-paramsUsage
groupByParams(array, ...props);
array - input array. ...props - props list for grouping;
One param
Input:
const fixtures = [
{
name: "Bob",
age: 25,
language: {
english: true,
spanish: true,
russian: false
}
},
{
name: "Helen",
age: 30,
language: {
english: true,
spanish: false,
russian: false
}
},
{
name: "Megan",
age: 25,
language: {
english: true,
spanish: false,
russian: true
}
},
{
name: "Megan",
age: 29,
language: {
english: false,
spanish: false,
russian: true
}
}
];Invoke:
let output = groupByParams(fixtures, "age")Output:
[
{
"params": {
"age": 25
},
"values": [
{
"name": "Bob",
"age": 25,
"language": {
"english": true,
"spanish": true,
"russian": false
}
},
{
"name": "Megan",
"age": 25,
"language": {
"english": true,
"spanish": false,
"russian": true
}
}
]
},
{
"params": {
"age": 29
},
"values": [
{
"name": "Megan",
"age": 29,
"language": {
"english": false,
"spanish": false,
"russian": true
}
}
]
},
{
"params": {
"age": 30
},
"values": [
{
"name": "Helen",
"age": 30,
"language": {
"english": true,
"spanish": false,
"russian": false
}
}
]
}
]One param
Input:
const fixtures = [
{
name: "Bob",
age: 25,
language: {
english: true,
spanish: true,
russian: false
}
},
{
name: "Helen",
age: 30,
language: {
english: true,
spanish: false,
russian: false
}
},
{
name: "Megan",
age: 25,
language: {
english: true,
spanish: false,
russian: true
}
},
{
name: "Megan",
age: 29,
language: {
english: false,
spanish: false,
russian: true
}
}
];Invoke:
let output = groupByParams(fixtures, "age")Output:
[
{
"params": {
"age": 25
},
"values": [
{
"name": "Bob",
"age": 25,
"language": {
"english": true,
"spanish": true,
"russian": false
}
},
{
"name": "Megan",
"age": 25,
"language": {
"english": true,
"spanish": false,
"russian": true
}
}
]
},
{
"params": {
"age": 29
},
"values": [
{
"name": "Megan",
"age": 29,
"language": {
"english": false,
"spanish": false,
"russian": true
}
}
]
},
{
"params": {
"age": 30
},
"values": [
{
"name": "Helen",
"age": 30,
"language": {
"english": true,
"spanish": false,
"russian": false
}
}
]
}
]Multi param
Input:
const fixtures = [
{
name: "Bob",
age: 25,
language: {
english: true,
spanish: true,
russian: false
}
},
{
name: "Helen",
age: 30,
language: {
english: true,
spanish: false,
russian: false
}
},
{
name: "Megan",
age: 25,
language: {
english: true,
spanish: false,
russian: true
}
},
{
name: "Megan",
age: 29,
language: {
english: false,
spanish: false,
russian: true
}
}
];Invoke:
let output = groupByParams(fixtures, "name", "age")Output:
[
{
"params": {
"name": "Bob",
"age": 25
},
"values": [
{
"name": "Bob",
"age": 25,
"language": {
"english": true,
"spanish": true,
"russian": false
}
}
]
},
{
"params": {
"name": "Helen",
"age": 30
},
"values": [
{
"name": "Helen",
"age": 30,
"language": {
"english": true,
"spanish": false,
"russian": false
}
}
]
},
{
"params": {
"name": "Megan",
"age": 25
},
"values": [
{
"name": "Megan",
"age": 25,
"language": {
"english": true,
"spanish": false,
"russian": true
}
}
]
},
{
"params": {
"name": "Megan",
"age": 29
},
"values": [
{
"name": "Megan",
"age": 29,
"language": {
"english": false,
"spanish": false,
"russian": true
}
}
]
}
]Nested params
Input:
const fixtures = [
{
name: "Bob",
age: 25,
language: {
english: true,
spanish: true,
russian: false
}
},
{
name: "Helen",
age: 30,
language: {
english: true,
spanish: false,
russian: false
}
},
{
name: "Megan",
age: 25,
language: {
english: true,
spanish: false,
russian: true
}
},
{
name: "Megan",
age: 29,
language: {
english: false,
spanish: false,
russian: true
}
}
];Invoke:
let output = groupByParams(fixtures, "language.english", "language.russian");Output:
[
{
"params": {
"language.english": true,
"language.russian": false
},
"values": [
{
"name": "Bob",
"age": 25,
"language": {
"english": true,
"spanish": true,
"russian": false
}
},
{
"name": "Helen",
"age": 30,
"language": {
"english": true,
"spanish": false,
"russian": false
}
}
]
},
{
"params": {
"language.english": true,
"language.russian": true
},
"values": [
{
"name": "Megan",
"age": 25,
"language": {
"english": true,
"spanish": false,
"russian": true
}
}
]
},
{
"params": {
"language.english": false,
"language.russian": true
},
"values": [
{
"name": "Megan",
"age": 29,
"language": {
"english": false,
"spanish": false,
"russian": true
}
}
]
}
]License
MIT © nlapshin