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 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."

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.

A possible null hypothesis is that the mean male score is the same as the mean female score: where the null hypothesis, the mean of population 1, and the mean of population 2. A stronger …

null (nʌl) adj 1. without legal force; invalid; (esp in the phrase null and void) 2. without value or consequence; useless

In this comprehensive guide, targeted at both novice and seasoned coders, we will unpack the enigma that is null. The aim is to develop an intuitive understanding of what null is, how it …

Mar 16, 2025 · Null indicates a state where nothing exists or no valid value is assigned. In programming, it is used to denote that a variable or a pointer does not reference any valid data.

Sep 7, 2025 · The concept of null and its significance in computing with our comprehensive definition, examples, and explanations. Learn how null differs from zero and empty.

SQL IFNULL (), ISNULL (), COALESCE (), and NVL () Functions Look at the following "Products" table: ... Suppose that the "UnitsOnOrder" column is optional, and may contain NULL values. …