null - JavaScript | MDN - MDN Web Docs The null value represents the intentional absence of any object value It is one of JavaScript's primitive values and is treated as falsy for boolean operations The value null is written with a literal: null null is not an identifier for a property of the global object, like undefined can be
A quick and thorough guide to ‘null’: what it is, and how you . . . 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
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 Null device, a virtual file that discards data written to it, on Unix systems dev null