Delete nested properties from an object using dot notation.

Usage no npm install needed!

<script type="module">
  import unsetValue from 'https://cdn.skypack.dev/unset-value';


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Delete nested properties from an object using dot notation.

Please consider following this project's author, Jon Schlinkert, and consider starring the project to show your :heart: and support.


Install with npm:

$ npm install --save unset-value


var unset = require('unset-value');
unset(obj, prop);


  • obj {object}: The object to unset prop on
  • prop {string | string[]}: The property to unset. Dot-notation may be used or an array of nested properties.


Updates the object when a property is deleted

var obj = {a: 'b'};
unset(obj, 'a');
//=> {}

Returns true when a property is deleted

unset({a: 'b'}, 'a') // true

Returns true when a property does not exist

This is consistent with delete behavior in that it does not throw when a property does not exist.

unset({a: {b: {c: 'd'}}}, 'd') // true

delete nested values

var one = {a: {b: {c: 'd'}}};
unset(one, 'a.b');
//=> {a: {}}

var two = {a: {b: {c: 'd'}}};
unset(two, ['a', 'b', 'c']);
//=> {a: {b: {}}}

var three = {a: {b: {c: 'd', e: 'f'}}};
unset(three, 'a.b.c');
//=> {a: {b: {e: 'f'}}}

throws on invalid args

// 'expected an object.'



Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.

Running Tests

Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command:

$ npm install && npm test
Building docs

(This project's readme.md is generated by verb, please don't edit the readme directly. Any changes to the readme must be made in the .verb.md readme template.)

To generate the readme, run the following command:

$ npm install -g verbose/verb#dev verb-generate-readme && verb

Related projects

You might also be interested in these projects:

  • get-value: Use property paths like 'a.b.c' to get a nested value from an object. Even works… more | homepage
  • get-values: Return an array of all values from the given object. | homepage
  • omit-value: Omit properties from an object or deeply nested property of an object using object path… more | homepage
  • put-value: Update only existing values from an object, works with dot notation paths like a.b.c and… more | homepage
  • set-value: Create nested values and any intermediaries using dot notation ('a.b.c') paths. | homepage
  • union-value: Set an array of unique values as the property of an object. Supports setting deeply… more | homepage
  • upsert-value: Update or set nested values and any intermediaries with dot notation ('a.b.c') paths. | homepage


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Jon Schlinkert


Copyright © 2021, Jon Schlinkert. Released under the MIT License.

This file was generated by verb-generate-readme, v0.8.0, on March 18, 2021.