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Improve getScroll

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This commit is contained in:
ztplz 2018-10-23 12:18:35 +08:00 committed by 偏右
parent 65f85257b0
commit 1fedef37b8
1 changed files with 3 additions and 3 deletions
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6
components/_util/getScroll.tsx
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@ -1,4 +1,4 @@
export default function getScroll(target: any, top: boolean): number {
export default function getScroll(target: HTMLElement | Window | null, top: boolean): number {
if (typeof window === 'undefined') {
return 0;
}
@ -7,10 +7,10 @@ export default function getScroll(target: any, top: boolean): number {
const method = top ? 'scrollTop' : 'scrollLeft';
const isWindow = target === window;
let ret = isWindow ? target[prop] : target[method];
let ret = isWindow ? (target as Window)[prop] : (target as HTMLElement)[method];
// ie6,7,8 standard mode
if (isWindow && typeof ret !== 'number') {
ret = window.document.documentElement![method];
ret = (document.documentElement as HTMLElement)[method];
}
return ret;