3 replies

Improving `Config.literal` Construction for Specific Literal Types in TypeScript

Is there a better way to construct a

Config.literal

Config.literal

with a default value?

const mode = Config.withDefault(Config.literal("dev", "live")("APP_MODE"), "dev" as const);

const mode = Config.withDefault(Config.literal("dev", "live")("APP_MODE"), "dev" as const);

If I remove the

as const

as const

then

mode

mode

is of type

string

string

when it should be the literal values of

"dev" | "live"

"dev" | "live"

Improving `Config.literal` Construction for Specific Literal Types in TypeScript - Effect Community