perf: remove polyfill of isArray (#1626)

alibaba · May 15, 2022 · 71e6dcb · 71e6dcb
1 parent b7944c1
commit 71e6dcb
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Showing 2 changed files with 1 addition and 12 deletions.
diff --git a/packages/hooks/src/utils/__test__/index.spec.ts b/packages/hooks/src/utils/__test__/index.spec.ts
@@ -5,11 +5,6 @@ describe('shared utils methods', () => {
     expect(isArray([])).toBe(true);
     expect(isArray({})).toBe(false);
     expect(isArray(1)).toBe(false);
-
-    (Array as any).isArray = null;
-    expect(isArray([])).toBe(true);
-    expect(isArray({})).toBe(false);
-    expect(isArray(1)).toBe(false);
   });
 
   test('isBoolean', () => {

diff --git a/packages/hooks/src/utils/index.ts b/packages/hooks/src/utils/index.ts
@@ -1,10 +1,4 @@
-export const isArray = (value: unknown): value is any[] => {
-  if (Array.isArray) {
-    return Array.isArray(value);
-  }
-
-  return toString.call(value) === '[object Array]';
-};
+export const isArray = Array.isArray;
 export const isObject = (value: unknown): value is Record<any, any> =>
   value !== null && typeof value === 'object';
 export const isFunction = (value: unknown): value is Function => typeof value === 'function';