Primitive Value ↔ undefined, null, number, bigint, boolean, string, symbol
UNNBBSS
undefined, null, number, bigint, boolean, string, symbol
Primitive Reassignment
binds a new value to a new Memory Address
References
number↔ Primitive Value to rep FP64 numeric data Typebigint↔ Numeric Primitive Value to rep integer with arbitrary precision to store numbers >Number.MAX_SAFE_INTEGERstring↔ Primitive Value rep an ordered sequence of Characterboolean↔ Logical Primitive Value =true||falsenull↔ Primitive Value rep absence of any value; explicitly emptysymbol↔ immutable constant Primitive Value to rep unique Object property keysundefined↔ Primitive Value to rep Variable "not initialized" or "not existing" (for object property)