isNil

The standalone lodash.isNil package as a vendorable file. Useful when you want the exact lodash null-or-undefined check without another dependency.

Why copy this?

This page ships the published lodash.isNil file in both raw and normalized forms. The value is to vendor a tiny but familiar check without changing existing calling code.

Native alternative: A direct `value == null` check is short, but teams may still want to preserve the existing lodash utility contract in place.

Note: Raw and normalized views are both available. Use normalized when you want an ESM and TypeScript-friendly file, and raw when you want the original published package shape.

This copy is your responsibility once you adopt it. It does not automatically receive upstream bug fixes or security updates.

Snippet

Copy-first distribution

Normalized

ESM / TS / normalized

Runtime: node, bun

/**
 * Derived from [email protected]
 * Rule-based normalized variant generated by this repository.
 * Preserve the upstream license and attribution notices when copying this file.
 */
/**
 * Derived from [email protected]
 * Rule-based normalized variant generated by this repository.
 * See THIRD_PARTY_NOTICES.md for upstream license and attribution details.
 */
/**
 * lodash 4.0.0 (Custom Build) <https://lodash.com/>
 * Build: `lodash modularize exports="npm" -o ./`
 * Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */

/**
 * Checks if `value` is `null` or `undefined`.
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is nullish, else `false`.
 * @example
 *
 * _.isNil(null);
 * // => true
 *
 * _.isNil(void 0);
 * // => true
 *
 * _.isNil(NaN);
 * // => false
 */
function isNil(value) {
  return value == null;
}

export default isNil;

Variant note: Rule-based normalization for modern TS projects. The goal is easier import and build compatibility, not changed behavior.

Transforms: module.exports-to-export-default, js-extension-to-ts-extension

Validation: This normalized variant is intended to stay oxlint and oxfmt clean in this repo.

Raw

CJS / JS / raw

Runtime: node, bun

/**
 * lodash 4.0.0 (Custom Build) <https://lodash.com/>
 * Build: `lodash modularize exports="npm" -o ./`
 * Copyright 2012-2016 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2016 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */

/**
 * Checks if `value` is `null` or `undefined`.
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is nullish, else `false`.
 * @example
 *
 * _.isNil(null);
 * // => true
 *
 * _.isNil(void 0);
 * // => true
 *
 * _.isNil(NaN);
 * // => false
 */
function isNil(value) {
  return value == null;
}

module.exports = isNil;

Variant note: Published package file kept as-is for older teams or repos that still prefer the original CommonJS distribution.