NULL Definition & Meaning - Merriam-Webster

www.merriam-webster.com/dictionary/null
The meaning of NULL is having no legal or binding force : invalid. How to use null in a sentence. Did you know?

Null - Wikipedia

en.wikipedia.org/wiki/Null
Null is a term that can have various meanings in science, technology, mathematics, arts, and people. It can refer to a zero value, a missing data, a null pointer, a null character, or a null device, among others.

c# - What does null! statement mean? - Stack Overflow

stackoverflow.com/questions/54724304/what-does-null-statement-mean
It can be used on a type to control Nullability, it is then called the "Null Forgiving Operator". Basically, null! applies the ! operator to the value null. This overrides the nullability of the value null to non-nullable, telling the compiler that null is a "non-null" type.

null - JavaScript | MDN - MDN Web Docs

developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/null     2025-10-28T00:00:00.0000000
The null keyword refers to the null primitive value, which represents the intentional absence of any object value.

NULL | English meaning - Cambridge Dictionary

dictionary.cambridge.org/dictionary/english/null
Null means having no legal force, no value or effect, or containing nothing. It can be an adjective, noun or verb in different contexts. See how to use null in sentences and compare it with related words.

Null - Glossary - MDN

developer.mozilla.org/en-US/docs/Glossary/Null     2025-07-11T00:00:00.0000000
In computer science, a null value represents a reference that points, generally intentionally, to a nonexistent or invalid object or address. The meaning of a null reference varies among language implementations.

A quick and thorough guide to 'null': what it is, and how you should use it

www.freecodecamp.org/news/a-quick-and-thorough-guide-to-null-what-it-is-and-how-you-should-use-it-d170cea62840/
Learn what null means in different programming languages, how it is implemented in memory, and when to use it or avoid it in your source code. This article explains null for reference types, not for value types, with examples in Java.

SQL COALESCE (), IFNULL (), ISNULL (), NVL () Functions

www.w3schools.com/sql/sql_isnull.asp
The COALESCE () function returns the first non-NULL value in a list of values. The COALESCE () function works in MySQL, SQL Server, and Oracle (not in MS Access).

What Is Null? - Computer Hope

www.computerhope.com/jargon/n/null.htm     2025-09-07T00:00:00.0000000
The concept of null and its significance in computing with our comprehensive definition, examples, and explanations. Learn how null differs from zero and empty.

Empty vs. Null - What's the Difference? | This vs. That

thisvsthat.io/empty-vs-null
What's the difference between Empty and Null? Empty and null are both terms used in programming to represent a lack of value or absence of data. However, the...
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