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TypeScript take.take类代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了TypeScript中rxjs/operator/take.take的典型用法代码示例。如果您正苦于以下问题:TypeScript take类的具体用法?TypeScript take怎么用?TypeScript take使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。



在下文中一共展示了take类的8个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的TypeScript代码示例。

示例1: FirebaseListFactory

        .then(() => {

          let query1 = FirebaseListFactory(`questions`, {
            query: {
              orderByChild: 'data',
              endAt: { value: 0 }
            }
          });
          query1 = take.call(query1, 1);
          query1 = toPromise.call(query1);

          let query2 = FirebaseListFactory(`questions`, {
            query: {
              orderByChild: 'data',
              endAt: { value: 0, key: 'val2' }
            }
          });
          query2 = take.call(query2, 1);
          query2 = toPromise.call(query2);

          Promise.all([query1, query2]).then(([list1, list2]) => {
            expect(list1.map(i => i.$key)).toEqual(['val1', 'val2', 'val3']);
            expect(list2.map(i => i.$key)).toEqual(['val1', 'val2']);
            done();
          });
        })
开发者ID:julienevano,项目名称:angularfire2,代码行数:26,代码来源:firebase_list_factory.spec.ts


示例2:

 const initializer = () => {
   const app = injector.get<ApplicationRef>(ApplicationRef);
   if (!('serviceWorker' in navigator)) {
     return;
   }
   const onStable =
       op_filter.call(app.isStable, (stable: boolean) => !!stable) as Observable<boolean>;
   const isStable = op_take.call(onStable, 1) as Observable<boolean>;
   const whenStable = op_toPromise.call(isStable) as Promise<boolean>;
   return whenStable.then(() => navigator.serviceWorker.register(script, options))
       .then(() => undefined) as Promise<void>;
 };
开发者ID:cartant,项目名称:angular,代码行数:12,代码来源:module.ts


示例3:

  const initializer = () => {
    const app = injector.get<ApplicationRef>(ApplicationRef);
    if (!('serviceWorker' in navigator)) {
      return;
    }
    const onStable =
        op_filter.call(app.isStable, (stable: boolean) => !!stable) as Observable<boolean>;
    const isStable = op_take.call(onStable, 1) as Observable<boolean>;
    const whenStable = op_toPromise.call(isStable) as Promise<boolean>;

    // Don't return the Promise, as that will block the application until the SW is registered, and
    // cause a crash if the SW registration fails.
    whenStable.then(() => navigator.serviceWorker.register(script, options));
  };
开发者ID:AnthonyPAlicea,项目名称:angular,代码行数:14,代码来源:module.ts


示例4: FirebaseListFactory

        .then(() => {

          let query1 = FirebaseListFactory(app.database().ref(`questions`), {
            query: {
              orderByChild: 'data',
              equalTo: { value: 0 }
            }
          });
          let promise1 = toPromise.call(take.call(query1, 1));

          let query2 = FirebaseListFactory(app.database().ref(`questions`), {
            query: {
              orderByChild: 'data',
              equalTo: { value: 0, key: 'val2' }
            }
          });
          let promise2 = toPromise.call(take.call(query2, 1));

          Promise.all([promise1, promise2]).then(([list1, list2]) => {
            expect(list1.map(i => i.$key)).toEqual(['val1', 'val2', 'val3']);
            expect(list2.map(i => i.$key)).toEqual(['val2']);
            done();
          });
        })
开发者ID:mhartington,项目名称:angularfire2,代码行数:24,代码来源:firebase_list_factory.spec.ts


示例5: it

    it('should re-emit identical instances of unchanged children as snapshots', (done: any) => {

      let prev;

      take.call(questionsSnapshotted, 2).subscribe(
        (list) => {
          if (prev) {
            expect(list[0]).toBe(prev[0]);
            done();
          } else {
            prev = list;
            questionsSnapshotted.push({ name: 'bob' });
          }
        },
        done.fail
      );
      questionsSnapshotted.push({ name: 'alice' });
    });
开发者ID:mhartington,项目名称:angularfire2,代码行数:18,代码来源:firebase_list_factory.spec.ts


示例6:

  const initializer = () => {
    const app = injector.get<ApplicationRef>(ApplicationRef);
    if (!(isPlatformBrowser(platformId) && ('serviceWorker' in navigator) &&
          options.enabled !== false)) {
      return;
    }
    const onStable =
        op_filter.call(app.isStable, (stable: boolean) => !!stable) as Observable<boolean>;
    const isStable = op_take.call(onStable, 1) as Observable<boolean>;
    const whenStable = op_toPromise.call(isStable) as Promise<boolean>;

    // Wait for service worker controller changes, and fire an INITIALIZE action when a new SW
    // becomes active. This allows the SW to initialize itself even if there is no application
    // traffic.
    navigator.serviceWorker.addEventListener('controllerchange', () => {
      if (navigator.serviceWorker.controller !== null) {
        navigator.serviceWorker.controller.postMessage({action: 'INITIALIZE'});
      }
    });

    // Don't return the Promise, as that will block the application until the SW is registered, and
    // cause a crash if the SW registration fails.
    whenStable.then(() => navigator.serviceWorker.register(script, {scope: options.scope}));
  };
开发者ID:asself,项目名称:angular,代码行数:24,代码来源:module.ts


示例7:

function skipAndTake<T>(obs: Observable<T>, takeCount: number = 1, skipCount: number = 0) {
  return take.call(skip.call(obs, skipCount), takeCount);
}
开发者ID:mhartington,项目名称:angularfire2,代码行数:3,代码来源:firebase_list_factory.spec.ts


示例8:

function obsToSinglePromise<T>(obs: Observable<T>): Promise<T> {
  const takeOne = take.call(obs, 1);
  return toPromise.call(takeOne);
}
开发者ID:asself,项目名称:angular,代码行数:4,代码来源:integration_spec.ts



注:本文中的rxjs/operator/take.take类示例由纯净天空整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。


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