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  1. Definition of NULL - Merriam-Webster

    having no legal or binding force : invalid; amounting to nothing : nil; having no value : insignificant… See the full definition

  2. null - JavaScript | MDN - MDN Web Docs

    Oct 28, 2025 · JavaScript is unique to have two nullish values: null and undefined. Semantically, their difference is very minor: …

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

    Feb 16, 2019 · The key to understanding what null! means is understanding the ! operator. You may have used it before as the "not" …

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

    Jun 12, 2018 · The basic rule is simple: null should only be allowed when it makes sense for an object reference to have 'no value …

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

    Jun 12, 2018 · If a reference points to null then it always means that there is no value associated with it. In most cases, null has a …

  6. Null - Glossary - MDN

    Jul 11, 2025 · In computer science, a null value represents a reference that points, generally intentionally, to a nonexistent or invalid …

  7. Null - Wikipedia

    Null character, the zero-valued ASCII character, also designated by NUL, often used as a terminator, separator or filler. This symbol …