Rename js snippets

snippets/js/s/array-to-identity-object.md

@@ -0,0 +1,22 @@
+---
+title: Convert array to identity object
+type: snippet
+language: javascript
+tags: [array]
+author: chalarangelo
+cover: rain-shopping
+dateModified: 2023-04-16T05:00:00-04:00
+---
+
+Converts an array of values into an object with the same values as keys and values.
+
+- Use `Array.prototype.map()` to map each value to an array of key-value pairs.
+- Use `Object.fromEntries()` to convert the array of key-value pairs into an object.
+
+```js
+const toIdentityObject = arr => Object.fromEntries(arr.map(v => [v, v]));
+```
+
+```js
+toIdentityObject(['a', 'b']); // { a: 'a', b: 'b' }
+```