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javascript/snippets/omit.md

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+---
+title: Omit object keys
+type: snippet
+tags: [object]
+cover: broken-screen
+dateModified: 2020-10-21T21:54:53+03:00
+---
+
+Omits the key-value pairs corresponding to the given keys from an object.
+
+- Use `Object.keys()`, `Array.prototype.filter()` and `Array.prototype.includes()` to remove the provided keys.
+- Use `Array.prototype.reduce()` to convert the filtered keys back to an object with the corresponding key-value pairs.
+
+```js
+const omit = (obj, arr) =>
+  Object.keys(obj)
+    .filter(k => !arr.includes(k))
+    .reduce((acc, key) => ((acc[key] = obj[key]), acc), {});
+```
+
+```js
+omit({ a: 1, b: '2', c: 3 }, ['b']); // { 'a': 1, 'c': 3 }
+```