9 docs tagged with "Null"

!snippet equality null vs undefined. Topics on: null == undefined, null === undefined, !null, isNaN(1 + null), isNaN(null), isNaN(undefined), isNaN(1+ undefined

'strictNullChecks': true is defined as: to throw Exception when access Variable which potentially be null/undefined. Topics on: . Read more: JS, TS, TS Def, TSC

isNaN(1 + null) is defined as: false. Topics on: 1+null, 1+undefined. Read more: JS, JS Language, Primitive, Null|FullStack Wiki by Roger J

isNaN(undefined) is defined as: true. Topics on: Coercion to NaN when called w/o Number namespace. Read more: JS, JS Language, Primitive, Null | Full-Stack Wiki

Non-Null Assertion Operator is defined as: postfix ! Type Assertion to Type Assertion that Variable ≠ undefined || null. Topics on: ! removes null & undefined

null is defined as: Primitive Value rep absence of any value; explicitly empty. Topics on: !snippet equality null vs undefined. Read more: JS, JS Language, Prim

Primitive Value is defined as: undefined, null, number, bigint, boolean, string, symbol. Topics on: UNNBBSS, Stored in EC in Call Stack, Primitive Reassignment.

typeof null is defined as: 'object'. Topics on: !bug historical bug we're stuck with and can't fix w/o breaking the web!. Read more: JS, JS Language, Primitive

UNNBBSS is defined as: undefined, null, number, bigint, boolean, string, symbol. Topics on: . Read more: JS, JS Concepts, JS Engine, Value, Primitive Value, UNN