entries
The entries() method returns an array of an object's key-value pairs with strict typing.
Interactive example
Syntax
typescript
type GetEntry<
GenericKey extends ObjectKey,
GenericInput extends unknown,
> = GenericInput extends any
? GenericKey extends string | number
? [`${GenericKey}`, GenericInput]
: never
: never;
type GetEntries<
GenericObject extends object,
> = (
{
[Prop in keyof GenericObject]-?: GetEntry<Prop, GenericObject[Prop]>
}[keyof GenericObject]
) extends infer InferredResult extends ObjectEntry
? IsEqual<InferredResult, never> extends true
? []
: InferredResult[]
: never;
function entries<
GenericInput extends object
>(
input: GenericInput
): SimplifyTopLevel<GetEntries<GenericInput>>Parameters
input: The object whose key-value pairs you want to retrieve.
Return value
An array of tuples [key, value] with strict typing that preserves the exact types of each property.
See also
keys- Returns an array of an object's keysvalues- Returns an array of an object's valuesentry- Creates a typed key-value pairfromEntries- Builds an object from entries