本文整理匯總了TypeScript中rxjs/operator/last.last類的典型用法代碼示例。如果您正苦於以下問題:TypeScript last類的具體用法?TypeScript last怎麽用?TypeScript last使用的例子?那麽, 這裏精選的類代碼示例或許可以為您提供幫助。
在下文中一共展示了last類的2個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的TypeScript代碼示例。
示例1: forEach
export function waitForMap<A, B>(
obj: {[k: string]: A}, fn: (k: string, a: A) => Observable<B>): Observable<{[k: string]: B}> {
const waitFor: Observable<B>[] = [];
const res: {[k: string]: B} = {};
forEach(obj, (a: A, k: string) => {
if (k === PRIMARY_OUTLET) {
waitFor.push(map.call(fn(k, a), (_: B) => {
res[k] = _;
return _;
}));
}
});
forEach(obj, (a: A, k: string) => {
if (k !== PRIMARY_OUTLET) {
waitFor.push(map.call(fn(k, a), (_: B) => {
res[k] = _;
return _;
}));
}
});
if (waitFor.length > 0) {
const concatted$ = concatAll.call(of (...waitFor));
const last$ = l.last.call(concatted$);
return map.call(last$, () => res);
} else {
return of (res);
}
}
示例2: of
export function waitForMap<A, B>(
obj: {[k: string]: A}, fn: (k: string, a: A) => Observable<B>): Observable<{[k: string]: B}> {
if (Object.keys(obj).length === 0) {
return of ({})
}
const waitHead: Observable<B>[] = [];
const waitTail: Observable<B>[] = [];
const res: {[k: string]: B} = {};
forEach(obj, (a: A, k: string) => {
const mapped = map.call(fn(k, a), (r: B) => res[k] = r);
if (k === PRIMARY_OUTLET) {
waitHead.push(mapped);
} else {
waitTail.push(mapped);
}
});
const concat$ = concatAll.call(of (...waitHead, ...waitTail));
const last$ = l.last.call(concat$);
return map.call(last$, () => res);
}