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. A field with a null value is a field with no value With no value or effect
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(of a set or matrix) containing nothing…
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 We have to understand its semantics and implementation, and we need to know how to use null in our source code. Javascript is unique to have two nullish values
Semantically, their difference is very minor Undefined represents the absence of a value, while null represents the absence of an object. This symbol has no visual representation. Without value, effect, consequence, or significance.
See examples of null used in a sentence.
(esp in the phrase null and void) 2 The concept of null and its significance in computing with our comprehensive definition, examples, and explanations Learn how null differs from zero and empty. Ever since its invention, null has remained a fundamental concept in many imperative programming languages like java, c#, and javascript despite its drawbacks
The null reference introduces ambiguity and uncertainty into code.
