Package Exports
- random-unique-subarray
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Readme
random-unique-subarray
Get a random subarray of the specified length with unique elements
Install
npm install random-unique-subarray
Usage
import uniqueSubarr from 'random-unique-subarray';
const arr = [1, 2, 3, 4, 5]
console.log(uniqueSubarr(arr, 2))
// => [2, 5]
console.log(uniqueSubarr(arr, 4))
// => [5, 2, 4, 3]API
uniqueSubarr(array, number, options?)
Returns a random subarray of the specified length with unique elements
array
Type: []
Description: Array of elements from which a subarray will be created
number
Type: Number
Description: Length a created subarray
options
Type: Object
options.removeDuplicates
Type: Boolean
Default: false
Description: Flag whether to delete the same elements in array
options.key
Type: String
Default: undefined
Description: if array is array of object. We can remove any duplicate values based on this key object.
More: https://github.com/tjcafferkey/removeduplicates
Examples
const arr = [1, 2, 2]
console.log(uniqueSubarr(arr, 2))
// => [2, 2] or [1, 2]
console.log(uniqueSubarr(arr, 2, {
removeDuplicates: true
}))
// => [1, 2]const arr = [{
id: 1,
name: 'Name1'
}, {
id: 2,
name: 'Name2'
}, {
id: 2,
name: 'Name2'
}]
console.log(uniqueSubarr(arr, 2, {
removeDuplicates: true,
key: 'id'
}))
// => [ { id: 2, name: 'Name2' }, { id: 1, name: 'Name1' } ]