chore: Refactoring

Author: Akurganow

.github/FUNDING.yml

@@ -0,0 +1,12 @@
+# These are supported funding model platforms
+
+github: [Akurganow]
+patreon: akurganow
+# pen_collective: # Replace with a single Open Collective username
+# ko_fi: # Replace with a single Ko-fi username
+# tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
+# community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+# liberapay: # Replace with a single Liberapay username
+# issuehunt: # Replace with a single IssueHunt username
+# otechie: # Replace with a single Otechie username
+# custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

__tests__/create-balanced-array.spec.ts renamed to __tests__/createBalancedArray.test.ts

@@ -1,6 +1,6 @@
 import filterBySameKeyValue from '../src/filterBySameKeyValue'
 
-describe('filterBySameValue', () => {
+describe('filterBySameKeyValue', () => {
 	test('should filter by same value', () => {
 		function filterBySameId<T extends { id: string }>(item: T, index: number, array: T[]) {
 			return filterBySameKeyValue<T>(item, index, array, 'id')

__tests__/filter-by-same-key-value.test.ts renamed to __tests__/filterBySameKeyValue.test.ts

@@ -24,7 +24,7 @@ describe('isSortedBy', () => {
 	test('not an array of objects', () => {
 		const items = ['a', 'b', 'c'] as unknown as Array<{ id: string }>
 
-		expect(() => isSortedBy(items, 'id')).toThrowErrorMatchingInlineSnapshot('"Array is not an array of objects. (string)"')
+		expect(() => isSortedBy(items, 'id')).toThrowErrorMatchingInlineSnapshot('"Array is not an array of objects."')
 	})
 	test('string', () => {
 		const itemsAsc = [{ id: 'a' }, { id: 'b' }, { id: 'c' }]

__tests__/get-key-value.ts renamed to __tests__/getKeyValue.ts

@@ -1,6 +1,6 @@
 import { Sortable, SortableKey, SortableOrder } from './types'
 import { DEFAULT_ORDER } from './constants'
-import { isObject } from '@plq/is'
+import { isFunction, isObject } from '@plq/is'
 
 import isSortedValues from './isSortedValues'
 
@@ -18,11 +18,11 @@ import isSortedValues from './isSortedValues'
 export default function isSortedBy<T extends Sortable<T>>(array: T[], key: SortableKey<T>, order: SortableOrder = DEFAULT_ORDER): boolean {
 	if (array.length <= 1) return true
 
-	if (!isObject(array[0])) throw new Error(`Array is not an array of objects. (${typeof array[0]})`)
+	if (array.some(item => !isObject(item))) throw new Error('Array is not an array of objects.')
 
 	const mapped = (array as Sortable<T>[])
 		.map(item => {
-			if (typeof item[key] === 'function') {
+			if (isFunction(item[key])) {
 				return (item[key] as (() => string | number))() as string | number
 			} else {
 				return item[key] as unknown as string | number