getOptionEnum

Import from @varavel/vdl-plugin-sdk/utils/options.

function getOptionEnum<T>(
   options, 
   key, 
   allowedValues, 
   defaultValue): T;

Returns a string option constrained to a known set of allowed values.

Missing, blank, and unsupported values fall back to the provided default.

Type Parameters

Type Parameter
`T` extends `string`

Parameter	Type	Description
`options`	`Record`\<`string`, `string`> \| `undefined`	Plugin options record.
`key`	`string`	Option name to read.
`allowedValues`	readonly `T`[]	Supported string values for the option.
`defaultValue`	`T`	Value returned when the option is missing or invalid.

T

A valid enum-like string from allowedValues.

getOptionEnum({ format: "esm" }, "format", ["cjs", "esm"] as const, "cjs");
// returns "esm"