Package Exports

@writetome51/get-array-from-property

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Readme

getArrayFromProperty(
property: string,
objects
): any[]

Returns array of values of property found in each of objects.
property is a string that can include dot-notation ( 'property.subproperty.subsubproperty' ) .

Note: property does not have to be an object key. It can also be an array index.
If getting the values of array indexes, here you need to use dot-notation and not
square braces. Example: '1.0' instead of [1][0]

Examples

let people = [
    {name:'Tom', age: 20},
    {name:'Ron', age: 40},
    {name:'Hank', age: 70},
];
let names = getArrayFromProperty('name', people);
// names is [ 'Tom', 'Ron', 'Hank' ]


let people = [
    {name: {first: 'Tom', last: 'Johnson'}},
    {name: {first: 'Ron', last: 'Thompson'}},
    {name: {first: 'Hank', last: 'Lawrence'}},
];
let names = getArrayFromProperty('name.last', people);
// names is [ 'Johnson', 'Thompson', 'Lawrence' ]


let numbers = [
    [1,2,3,4],
    [5,6,7,8],
    [9,10,11,12]
];
let indexOnes = getArrayFromProperty('1', numbers);
// indexOnes is [ 2, 6, 10 ]


let numbers = [
    [[1,2], [3,4]],
    [[5,6], [7,8]],
    [[9,10], [11,12]]
];
let nums = getArrayFromProperty('1.0', numbers);
// nums is [ 3, 7, 11 ]

Installation

You must have npm installed first. Then, in the command line:

npm install @writetome51/get-array-from-property

Loading

// if using TypeScript:
import {getArrayFromProperty} from '@writetome51/get-array-from-property';
// if using ES5 JavaScript:
var getArrayFromProperty = 
    require('@writetome51/get-array-from-property').getArrayFromProperty;

@writetome51/get-array-from-property