fix: typeof temporary dead zone (#1632)

alibaba · May 16, 2022 · e8a40ff · e8a40ff
1 parent 1c411e0
commit e8a40ff
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Showing 3 changed files with 7 additions and 8 deletions.
diff --git a/packages/hooks/src/useRequest/src/utils/isOnline.ts b/packages/hooks/src/useRequest/src/utils/isOnline.ts
@@ -1,8 +1,7 @@
-import { isUndef } from '../../../utils';
 import canUseDom from '../../../utils/canUseDom';
 
 export default function isOnline(): boolean {
-  if (canUseDom() && !isUndef(navigator.onLine)) {
+  if (canUseDom() && typeof navigator.onLine !== 'undefined') {
     return navigator.onLine;
   }
   return true;

diff --git a/packages/hooks/src/utils/canUseDom.ts b/packages/hooks/src/utils/canUseDom.ts
@@ -1,5 +1,3 @@
-import { isUndef } from './index';
-
 export default function canUseDom() {
-  return !!(!isUndef(window) && window.document && window.document.createElement);
+  return !!(typeof window !== 'undefined' && window.document && window.document.createElement);
 }
diff --git a/packages/hooks/src/utils/isBrowser.ts b/packages/hooks/src/utils/isBrowser.ts
@@ -1,5 +1,7 @@
-import { isUndef } from './index';
-
-const isBrowser = !!(!isUndef(window) && window.document && window.document.createElement);
+const isBrowser = !!(
+  typeof window !== 'undefined' &&
+  window.document &&
+  window.document.createElement
+);
 
 export default isBrowser;