Add new toArray and toString functions to the objects package

Author: egjiri

src/objects/index.test.ts

@@ -1,15 +1,19 @@
 import {
-  camelizeKeys, dasherizeKeys, underscoreKeys,
   isObject,
   removeKeys, removeKeysWithBlankValues,
   swapKeysAndValues,
+  toArray,
+  toString,
+  camelizeKeys, dasherizeKeys, underscoreKeys,
 } from '.';
 
 test('expors', () => {
   [
-    camelizeKeys, dasherizeKeys, underscoreKeys,
     isObject,
     removeKeys, removeKeysWithBlankValues,
     swapKeysAndValues,
+    toArray,
+    toString,
+    camelizeKeys, dasherizeKeys, underscoreKeys,
   ].map(item => expect(item).toBeDefined());
 });

src/objects/index.ts

@@ -1,4 +1,6 @@
-export { camelizeKeys, dasherizeKeys, underscoreKeys } from './transform-keys';
 export { isObject } from './is-object';
 export { removeKeys, removeKeysWithBlankValues } from './remove-keys';
 export { swapKeysAndValues } from './swap-keys-and-values';
+export { toArray } from './toArray';
+export { toString } from './toString';
+export { camelizeKeys, dasherizeKeys, underscoreKeys } from './transform-keys';

src/objects/toArray/index.test.ts

@@ -0,0 +1,15 @@
+import { toArray } from '.';
+
+import type { Cases } from 'testing/helpers';
+
+describe('test toArray function', () => {
+  const cases: Cases<typeof toArray> = [
+    ['normal use case', [{ a: 1, b: 2 }], ['a: 1', 'b: 2']],
+    ['null use case', [{ a: 1, b: null }], ['a: 1']],
+    ['undefined use case', [{ a: 1, b: undefined }], ['a: 1']],
+  ];
+  test.each(cases)('%s', (_, args, expected) => {
+    const actual = toArray(...args);
+    expect(actual).toEqual(expected);
+  });
+});

src/objects/toArray/index.ts

@@ -0,0 +1,5 @@
+import { removeKeysWithBlankValues } from '../remove-keys';
+
+export function toArray(object: Record<string, unknown>) {
+  return Object.keys(removeKeysWithBlankValues(object)).map(key => `${key}: ${object[key]}`);
+}

src/objects/toString/index.test.ts

@@ -0,0 +1,16 @@
+import { toString } from '.';
+
+import type { Cases } from 'testing/helpers';
+
+describe('test toString function', () => {
+  const cases: Cases<typeof toString> = [
+    ['normal use case', [{ a: 1, b: 2 }], 'a: 1\nb: 2'],
+    ['null use case', [{ a: 1, b: null }], 'a: 1'],
+    ['undefined use case', [{ a: 1, b: undefined }], 'a: 1'],
+    ['delimite use case', [{ a: 1, b: 2 }, ', '], 'a: 1, b: 2'],
+  ];
+  test.each(cases)('%s', (_, args, expected) => {
+    const actual = toString(...args);
+    expect(actual).toEqual(expected);
+  });
+});

src/objects/toString/index.ts

@@ -0,0 +1,5 @@
+import { toArray } from '../toArray';
+
+export function toString(styles: Record<string, unknown>, delimiter = '\n') {
+  return toArray(styles).join(delimiter);
+}