Add prefer-object-from-entries rule (#1308)

Author: fisker

docs/rules/prefer-array-flat.md

@@ -74,7 +74,7 @@ Type: `string[]`
 
 You can also check custom functions that flatten arrays.
 
-`_.flatten()`, `lodash.flatten()`, and `underscore.flatten()` are checked by default.
+`_.flatten()`, `lodash.flatten()`, and `underscore.flatten()` are always checked.
 
 Example:
 

docs/rules/prefer-at.md

@@ -94,7 +94,7 @@ Type: `string[]`
 
 You can also check custom functions that get last element of objects.
 
-`_.last()`, `lodash.last()`, and `underscore.last()` are checked by default.
+`_.last()`, `lodash.last()`, and `underscore.last()` are always checked.
 
 Example:
 

docs/rules/prefer-object-from-entries.md

@@ -0,0 +1,80 @@
+# Prefer using `Object.fromEntries(…)` to transform a list of key-value pairs into an object
+
+When transforming a list of key-value pairs into an object, [`Object.fromEntries(…)`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/fromEntries) should be preferred.
+
+This rule is fixable for simple cases.
+
+## Fail
+
+```js
+const object = pairs.reduce(
+	(object, [key, value]) => ({...object, [key]: value}),
+	{}
+);
+```
+
+```js
+const object = pairs.reduce(
+	(object, [key, value]) => ({...object, [key]: value}),
+	Object.create(null)
+);
+```
+
+```js
+const object = pairs.reduce(
+	(object, [key, value]) => Object.assign(object, {[key]: value}),
+	{}
+);
+```
+
+```js
+const object = pairs.reduce(addPairToObject, {});
+```
+
+```js
+const object = _.fromPairs(pairs);
+```
+
+## Pass
+
+```js
+const object = Object.fromEntries(pairs);
+```
+
+```js
+const object = new Map(pairs);
+```
+
+## Options
+
+Type: `object`
+
+### functions
+
+Type: `string[]`
+
+You can also check custom functions that transforms pairs.
+
+`lodash.fromPairs()` and `_.fromPairs()` are always checked.
+
+Example:
+
+```js
+{
+	'unicorn/prefer-object-from-entries': [
+		'error',
+		{
+			functions: [
+				'getObjectFromKeyValue',
+				'utils.fromPairs'
+			]
+		}
+	]
+}
+```
+
+```js
+// eslint unicorn/prefer-object-from-entries: ["error", {"functions": ["utils.fromPairs"]}]
+const object = utils.fromPairs(pairs); // Fails
+```
+

docs/rules/prefer-object-has-own.md

@@ -34,7 +34,7 @@ Type: `string[]`
 
 You can also check custom functions that indicating the object has the specified property as its own property.
 
-`_.has()`, `lodash.has()`, and `underscore.has()` are checked by default.
+`_.has()`, `lodash.has()`, and `underscore.has()` are always checked.
 
 Example:
 

index.js

@@ -105,6 +105,7 @@ module.exports = {
 				'unicorn/prefer-negative-index': 'error',
 				'unicorn/prefer-node-protocol': 'error',
 				'unicorn/prefer-number-properties': 'error',
+				'unicorn/prefer-object-from-entries': 'error',
 				// TODO: Enable this by default when targeting a Node.js version that supports `Object.hasOwn`.
 				'unicorn/prefer-object-has-own': 'off',
 				'unicorn/prefer-optional-catch-binding': 'error',

readme.md

@@ -101,6 +101,7 @@ Configure it in `package.json`.
 			"unicorn/prefer-negative-index": "error",
 			"unicorn/prefer-node-protocol": "error",
 			"unicorn/prefer-number-properties": "error",
+			"unicorn/prefer-object-from-entries": "error",
 			"unicorn/prefer-object-has-own": "off",
 			"unicorn/prefer-optional-catch-binding": "error",
 			"unicorn/prefer-prototype-methods": "error",
@@ -218,6 +219,7 @@ Each rule has emojis denoting:
 | [prefer-negative-index](docs/rules/prefer-negative-index.md) | Prefer negative index over `.length - index` for `{String,Array,TypedArray}#slice()`, `Array#splice()` and `Array#at()`. | ✅ | 🔧 |  |
 | [prefer-node-protocol](docs/rules/prefer-node-protocol.md) | Prefer using the `node:` protocol when importing Node.js builtin modules. | ✅ | 🔧 |  |
 | [prefer-number-properties](docs/rules/prefer-number-properties.md) | Prefer `Number` static properties over global ones. | ✅ | 🔧 | 💡 |
+| [prefer-object-from-entries](docs/rules/prefer-object-from-entries.md) | Prefer using `Object.fromEntries(…)` to transform a list of key-value pairs into an object. | ✅ | 🔧 |  |
 | [prefer-object-has-own](docs/rules/prefer-object-has-own.md) | Prefer `Object.hasOwn(…)` over `Object.prototype.hasOwnProperty.call(…)`. |  | 🔧 |  |
 | [prefer-optional-catch-binding](docs/rules/prefer-optional-catch-binding.md) | Prefer omitting the `catch` binding parameter. | ✅ | 🔧 |  |
 | [prefer-prototype-methods](docs/rules/prefer-prototype-methods.md) | Prefer borrowing methods from the prototype instead of the instance. | ✅ | 🔧 |  |