CurrentTimeZoneContext service that supplies the ambient TimeZone for APIs that work in
the current zone, such as DateTime.setZoneCurrent and
DateTime.nowInCurrentZone.
Details
Provide it with DateTime.withCurrentZone, one of the withCurrentZone*
helpers, or one of the layerCurrentZone* layers.
Example (Accessing the current time zone service)
import { DateTime, Effect } from "effect"
const program = Effect.gen(function*() {
// Access the current time zone service
const zone = yield* DateTime.CurrentTimeZone
console.log(DateTime.zoneToString(zone))
})
// Provide a time zone
const layer = DateTime.layerCurrentZoneNamed("Europe/London")
Effect.provide(program, layer)export class class CurrentTimeZoneclass CurrentTimeZone {
Service: Service;
key: Identifier;
}
Context service that supplies the ambient TimeZone for APIs that work in
the current zone, such as DateTime.setZoneCurrent and
DateTime.nowInCurrentZone.
Details
Provide it with DateTime.withCurrentZone, one of the withCurrentZone*
helpers, or one of the layerCurrentZone* layers.
Example (Accessing the current time zone service)
import { DateTime, Effect } from "effect"
const program = Effect.gen(function*() {
// Access the current time zone service
const zone = yield* DateTime.CurrentTimeZone
console.log(DateTime.zoneToString(zone))
})
// Provide a time zone
const layer = DateTime.layerCurrentZoneNamed("Europe/London")
Effect.provide(program, layer)
CurrentTimeZone extends import ContextContext.const Service: {
<Identifier, Shape = Identifier>(
key: string
): Service<Identifier, Shape>
<Self, Shape>(): <
Identifier extends string,
E,
R = Types.unassigned,
Args extends ReadonlyArray<any> = never
>(
id: Identifier,
options?:
| {
readonly make:
| ((
...args: Args
) => Effect<Shape, E, R>)
| Effect<Shape, E, R>
| undefined
}
| undefined
) => ServiceClass<Self, Identifier, Shape> &
([Types.unassigned] extends [R]
? unknown
: {
readonly make: [Args] extends [never]
? Effect<Shape, E, R>
: (
...args: Args
) => Effect<Shape, E, R>
})
<Self>(): <
Identifier extends string,
Make extends
| Effect<any, any, any>
| ((...args: any) => Effect<any, any, any>)
>(
id: Identifier,
options: { readonly make: Make }
) => ServiceClass<
Self,
Identifier,
Make extends
| Effect<infer _A, infer _E, infer _R>
| ((
...args: infer _Args
) => Effect<infer _A, infer _E, infer _R>)
? _A
: never
> & { readonly make: Make }
}
class CurrentTimeZoneclass CurrentTimeZone {
Service: Service;
key: Identifier;
}
Context service that supplies the ambient TimeZone for APIs that work in
the current zone, such as DateTime.setZoneCurrent and
DateTime.nowInCurrentZone.
Details
Provide it with DateTime.withCurrentZone, one of the withCurrentZone*
helpers, or one of the layerCurrentZone* layers.
Example (Accessing the current time zone service)
import { DateTime, Effect } from "effect"
const program = Effect.gen(function*() {
// Access the current time zone service
const zone = yield* DateTime.CurrentTimeZone
console.log(DateTime.zoneToString(zone))
})
// Provide a time zone
const layer = DateTime.layerCurrentZoneNamed("Europe/London")
Effect.provide(program, layer)
CurrentTimeZone, type TimeZone = TimeZone.Offset | TimeZone.NamedRepresents a time zone used by DateTime.Zoned.
Details
A TimeZone is either a fixed offset from UTC or a named IANA time zone.
Companion namespace containing the public variant and protocol types for
TimeZone.
TimeZone>()(
"effect/DateTime/CurrentTimeZone"
) {}