chore(type): type seedValue (#567)

3 files changed, 6 insertions, 6 deletions

diff --git a/src/datatype.ts b/src/datatype.ts
index 3da8e2a4..a5e751c0 100644
--- a/src/datatype.ts
+++ b/src/datatype.ts
@@ -4,11 +4,11 @@ import type { Faker } from '.';
  * Module to generate various primitive values and data types.
  */
 export class Datatype {
-  constructor(private readonly faker: Faker, seed?: any[] | any) {
+  constructor(private readonly faker: Faker, seed?: number | number[]) {
     // Use a user provided seed if it is an array or number
     if (Array.isArray(seed) && seed.length) {
       this.faker.mersenne.seed_array(seed);
-    } else if (!isNaN(seed)) {
+    } else if (!Array.isArray(seed) && !isNaN(seed)) {
       this.faker.mersenne.seed(seed);
     }
 
diff --git a/src/faker.ts b/src/faker.ts
index f8d43a7a..25046b9a 100644
--- a/src/faker.ts
+++ b/src/faker.ts
@@ -47,7 +47,7 @@ export class Faker {
   // Will be lazy init
   readonly definitions: LocaleDefinition = {} as LocaleDefinition;
 
-  seedValue?: any[] | any;
+  seedValue?: number | number[];
 
   readonly fake: Fake['fake'] = new Fake(this).fake;
   readonly unique: Unique['unique'] = new Unique().unique;
@@ -127,7 +127,7 @@ export class Faker {
     });
   }
 
-  seed(value?: any[] | any): void {
+  seed(value?: number | number[]): void {
     this.seedValue = value;
     this.random = new Random(this, this.seedValue);
     this.datatype = new Datatype(this, this.seedValue);
diff --git a/src/random.ts b/src/random.ts
index d9096d71..f1e1550f 100644
--- a/src/random.ts
+++ b/src/random.ts
@@ -18,11 +18,11 @@ function arrayRemove<T>(arr: T[], values: T[]): T[] {
  * Generates random values of different kinds. Some methods are deprecated and have been moved to dedicated modules.
  */
 export class Random {
-  constructor(private readonly faker: Faker, seed?: any[] | any) {
+  constructor(private readonly faker: Faker, seed?: number | number[]) {
     // Use a user provided seed if it is an array or number
     if (Array.isArray(seed) && seed.length) {
       this.faker.mersenne.seed_array(seed);
-    } else if (!isNaN(seed)) {
+    } else if (!Array.isArray(seed) && !isNaN(seed)) {
       this.faker.mersenne.seed(seed);
     }