@guoba-ai/utils / guard / isDef

Function: isDef()

function isDef<T>(val): val is T;

Defined in: guard.ts:90

Check if a value is defined (not undefined).

Type Parameters

T

T

Parameters

val

T | undefined

The value to check

Returns

val is T

true if the value is not undefined

Example

isDef(0) // true
isDef(null) // true
isDef(undefined) // false