object-array-utils - npm Package Compare versions

Comparing version 2.10.0 to 2.11.0

package.json

 {
   "name": "object-array-utils",
-  "version": "2.10.0",
+  "version": "2.11.0",
   "description": "Utilities for working with arrays and objects",
@@ -5,0 +5,0 @@ "scripts": {

README.md

@@ -69,2 +69,7 @@ # `object-array-utils`
 
+import { rejectProperties } from 'object-array-utils';
+
+rejectProperties({ prop1: 1, prop2: 2 }, ['prop1', 'prop3']) // { prop2: 2 }
+rejectProperties({ prop1: 1, prop2: 2 }, (_key, val) => val < 2) // { prop2: 2 }
+
 import { takeProperties } from 'object-array-utils';
@@ -71,0 +76,0 @@

src/index.js

@@ -248,2 +248,21 @@ function isNullOrUndefined(v) {
 
+function rejectProperties(o, arg) {
+  return isArray(arg)
+    ? rejectPropsByWhitelist(o, arg)
+    : rejectPropsByFun(o, arg);
+}
+
+function rejectPropsByWhitelist(o, props) {
+  return Object.keys(o).reduce((newObject, prop) => {
+    return (props.includes(prop))
+      ? newObject
+      : { ...newObject, [prop]: o[prop] };
+  }, {});
+}
+
+function rejectPropsByFun(o, fun) {
+  const filteredEntries = Object.entries(o).filter(([key, val]) => !fun(key, val));
+  return Object.fromEntries(filteredEntries);
+}
+
 function takeProperties(o, arg) {
@@ -341,3 +360,3 @@ return isArray(arg)
 
-// https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/groupBy
+// https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Array/group
 // function groupArrayElementsBy(arrayOfObjects, getKey) {
@@ -485,2 +504,3 @@ //   return arrayOfObjects.reduce(function (resultingObject, object) {
   isPrimitive,
+  rejectProperties,
   removeArrayElement,
@@ -487,0 +507,0 @@ removeArrayElementByIndex,

src/index.test.js

@@ -16,2 +16,3 @@ import {
   isPrimitive,
+  rejectProperties,
   removeArrayElement,
@@ -116,2 +117,19 @@ removeArrayElementByIndex,
 
+test('rejectProperties using whitelist of props', () => {
+  expect(rejectProperties({ foo: 1, bar: 2 }, ['foo'])).toEqual({ bar: 2 });
+  expect(rejectProperties({ foo: 1, bar: 2 }, ['bar'])).toEqual({ foo: 1 });
+  expect(rejectProperties({ foo: 1, bar: 2 }, ['bar', 'foo'])).toEqual({});
+  expect(rejectProperties({ foo: 1, bar: 2 }, ['bar', 'foo', 'baz'])).toEqual({});
+  expect(rejectProperties({ foo: 1, bar: 2 }, ['foo', 'foo'])).toEqual({ bar: 2 });
+  expect(rejectProperties({ foo: 1, foo: 2, bar: 3 }, ['foo'])).toEqual({ bar: 3 });
+  expect(rejectProperties({ foo: 1, foo: 2, bar: 3 }, ['bar'])).toEqual({ foo: 1, foo: 2 });
+  expect(rejectProperties({ foo: 1, bar: 2 }, ['baz'])).toEqual({ foo: 1, bar: 2 });
+});
+
+test('rejectProperties using function', () => {
+  expect(rejectProperties({ foo: 1, bar: 2 }, (_key, val) => val < 2)).toEqual({ bar: 2 });
+  expect(rejectProperties({ foo: 3, bar: 2 }, (_key, val) => val < 2)).toEqual({ foo: 3, bar: 2 });
+  expect(rejectProperties({ foo: 3, bar: 2 }, (_key, val) => val > 1)).toEqual({});
+});
+
 test('takeProperties using whitelist of props', () => {
@@ -118,0 +136,0 @@ expect(takeProperties({ foo: 1, bar: 2 }, ['foo'])).toEqual({ filtered: { foo: 1 }, rejected: { bar: 2 }, undefined: {} });

No alert changes

Improved metrics

Total package byte prevSize

40126

4.84%

Lines of code

601

5.81%

Number of lines in readme file

175

2.94%

No dependency changes