fix: update return type for check is primitive (#15770)

Connormiha · web-flow · commit 6c095631c8a7 · 2025-08-27T12:38:14.000+09:00
diff --git a/packages/jest-get-type/src/index.ts b/packages/jest-get-type/src/index.ts
@@ -58,4 +58,7 @@ export function getType(value: unknown): ValueType {
   throw new Error(`value of unknown type: ${value}`);
 }
 
-export const isPrimitive = (value: unknown): boolean => Object(value) !== value;
+export const isPrimitive = (
+  value: unknown,
+): value is null | undefined | string | number | boolean | symbol | bigint =>
+  Object(value) !== value;

Original file line number	Diff line number	Diff line change
`@@ -58,4 +58,7 @@ export function getType(value: unknown): ValueType {`
`58`	`58`	throw new Error(`value of unknown type: ${value}`);
`59`	`59`	`}`
`60`	`60`
`61`		`-export const isPrimitive = (value: unknown): boolean => Object(value) !== value;`
	`61`	`+export const isPrimitive = (`
	`62`	`+ value: unknown,`
	`63`	`+): value is null \| undefined \| string \| number \| boolean \| symbol \| bigint =>`
	`64`	`+ Object(value) !== value;`