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Rotate polaroid pictures


JavaScript zero value illustration - programming concept showing the number 0 in code

0

Null value in JavaScript - represents the intentional absence of any object or primitive value

null

Undefined value in JavaScript - variable not assigned a value or not declared

undefined

NaN in JavaScript - special 'Not a Number' value from invalid mathematical operations

NaN

An illustrative diagram explaining the differences between 0, null, undefined, and NaN in programming.