the.com/null
The value that means there's no value — the universe's shrug emoji.
means A deliberate placeholder meaning 'nothing here' — distinct from zero, empty, or false, it marks the total absence of a value.
from From Latin 'nullus,' meaning 'none' — itself built from 'ne' (not) plus 'ullus' (any). The word entered English in legal and mathematical contexts (as in 'null and void') centuries before computing borrowed it to name the absence of data, a sense that stuck hard once programming languages like ALGOL and C needed a formal way to say 'nothing is here.'
- not zero
- zero is a number, null is the absence of one
- billion dollar mistake
- inventor Tony Hoare publicly apologized for creating it
- null vs undefined
- programmers still argue which means more nothing
- database trap
- null equals nothing, not even itself, in SQL logic