9 docs tagged with "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

Argument is defined as: Value import as Parameter input to function. Topics on: Variable. Read more: JS, JS Language, Primitive, Undefined, Argument, Value, Par

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

Optional Chaining is defined as: JS Syntax to conditionally call Chain or Dot Notation if function/property exists, else return undefined. Topics on: IF (?) not

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

undefined is defined as: Primitive Value to rep Variable 'not initialized' or 'not existing' (for object property). Topics on: Argument. Read more: JS, JS Langu

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

Variable is defined as: named ref (Identifier) bound to a Value. Topics on: a variable can be either a Primitive or Reference Value type. Read more: JS, JS Lang

void is defined as: JS Operator to evalute Operand as Expression & return undefined. Topics on: used to ensure return undefined. Read more: JS, JS Language, JS