feat: add default delimiter map

src/types.ts

@@ -1,5 +1,7 @@
 // #region JSON types
 
+import type { Delimiter, DelimiterKey } from './constants'
+
 export type JsonPrimitive = string | number | boolean | null
 export type JsonObject = { [Key in string]: JsonValue } & { [Key in string]?: JsonValue | undefined }
 export type JsonArray = JsonValue[] | readonly JsonValue[]
@@ -9,6 +11,8 @@ export type JsonValue = JsonPrimitive | JsonObject | JsonArray
 
 // #region Encoder options
 
+export type { Delimiter, DelimiterKey }
+
 export interface EncodeOptions {
   /**
    * Number of spaces per indentation level.
@@ -17,9 +21,9 @@ export interface EncodeOptions {
   indent?: number
   /**
    * Delimiter to use for tabular array rows and inline primitive arrays.
-   * @default ','
+   * @default DELIMITERS.comma
    */
-  delimiter?: ',' | '\t' | '|'
+  delimiter?: Delimiter
 }
 
 export type ResolvedEncodeOptions = Readonly<Required<EncodeOptions>>