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  1. NULL Definition & Meaning - Merriam-Webster

    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."

  2. Nullish coalescing operator (??) - JavaScript | MDN

    Aug 26, 2025 · The nullish coalescing (??) operator is a logical operator that returns its right-hand side operand when its left-hand side operand is null or undefined, and otherwise returns its left …

  3. NULL | English meaning - Cambridge Dictionary

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

  4. A quick and thorough guide to ‘null’: what it is, and how you ...

    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 …

  5. NULL Definition & Meaning | Dictionary.com

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

  6. Null - Wikipedia

    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.

  7. SQL NULL Values - IS NULL and IS NOT NULL - W3Schools

    A field with a NULL value is a field with no value. If a field in a table is optional, it is possible to insert a new record or update a record without adding a value to this field.