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types: improve isDef typing (#7124)

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* types: improve isDef typing

* chore: update
This commit is contained in:
neverland 2020-09-07 20:16:54 +08:00 committed by GitHub
parent afe4248799
commit c7303786ae
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2 changed files with 3 additions and 2 deletions
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3
src/coupon-cell/index.tsx
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@ -27,12 +27,13 @@ function formatValue(props: CouponCellProps) {
if (coupon) {
let value = 0;
if (isDef(coupon.value)) {
({ value } = coupon);
}
if (isDef(coupon.denominations)) {
value = coupon.denominations!;
value = coupon.denominations;
}
return `-${currency} ${(value / 100).toFixed(2)}`;

2
src/utils/index.ts
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@ -9,7 +9,7 @@ export const isServer: boolean = Vue.prototype.$isServer;
// eslint-disable-next-line @typescript-eslint/no-empty-function
export function noop() {}
export function isDef(val: unknown): boolean {
export function isDef<T>(val: T): val is NonNullable<T> {
return val !== undefined && val !== null;
}