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app/code/node_modules/collect.js/docs/api/only.md

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+# `only()`
+
+The only method returns the items in the collection with the specified keys:
+
+```js
+const collection = collect({
+  id: 12,
+  name: 'John Doe',
+  email: 'john@doe.com',
+  active: true,
+});
+
+const filtered = collection.only(['name', 'email']);
+
+filtered.all();
+
+// { name: 'John Doe', email: 'john@doe.com' }
+```
+
+```js
+collect([1, 2, 3, 4])
+  .only([2, 12])
+  .all();
+
+// [2]
+```
+
+> For the inverse of `only`, see the `except` method.
+
+[View source on GitHub](https://github.com/ecrmnn/collect.js/blob/master/src/methods/only.js)