Null often pops up in legal and scientific contexts; it was originally used in Scottish law and still carries the meaning "having no legal or binding force," especially in the phrase "null and void."

Oct 28, 2025 · JavaScript is unique to have two nullish values: null and undefined. Semantically, their difference is very minor: undefined represents the absence of a value, while null …

NULL definition: 1. having no legal force: 2. with no value or effect: 3. (of a set or matrix) containing nothing…. Learn more.

Null definition: without value, effect, consequence, or significance.. See examples of NULL used in a sentence.

Mar 31, 2024 · Although undefined and null have some functional overlap, they have different purposes. In the strictest sense, null represents a value intentionally defined as "blank," and …

Jul 23, 2025 · undefined indicates a variable hasn’t been initialized, while null is intentionally assigned to indicate no value. Understanding the distinction helps write cleaner, more …

Jun 12, 2018 · null is a fundamental concept in many programming languages. It is ubiquitous in all kinds of source code written in these languages. So it is essential to fully grasp the idea of …

Null character, the zero-valued ASCII character, also designated by NUL, often used as a terminator, separator or filler. This symbol has no visual representation.

Jun 11, 2023 · When it comes to defining “nothing” in Javascript, we have null, undefined, and empty. Just why do we need so many ways to define “nothing” in Javascript and what is the …

Null is used in cases where "nothing yet" is a valid scenario. For instance, if a user has an account, but doesn't (yet) have a profile picture, account.profilePic may be null.