rxjs#skip TypeScript Examples

The following examples show how to use rxjs#skip. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: ngm-slicer.ts    From ngm with BSD 3-Clause "New" or "Revised" License 6 votes vote down vote up 
constructor() {
    super();
    ToolboxStore.slicer.subscribe(slicer => {
      if (!slicer) return;
      this.slicer = slicer;
      this.slicer.draw.addEventListener('statechanged', evt => {
        DrawStore.setDrawState((<CustomEvent>evt).detail.active);
        this.requestUpdate();
      });
      this.syncSlice();
    });
    ToolboxStore.sliceGeometry.pipe(skip(1)).subscribe(geom => this.toggleGeomSlicer(geom));
    ToolboxStore.openedGeometryOptions.subscribe(options => {
      this.editingEnabled = !!(options?.editing);
      if (this.editingEnabled && (this.slicer?.active || this.slicer?.draw.active))
        this.toggleSlicer();
    });
    ToolboxStore.syncSlice.subscribe(() => this.syncSlice());
  }
Example #2
Source File: document.spec.ts    From platyplus with MIT License 4 votes vote down vote up 
describe('document', () => {
  let db: Database

  beforeEach(async () => {
    db = await setup()
  })

  afterEach(async () => {
    await teardown(db)
  })

  /* eslint-disable @typescript-eslint/no-unused-vars */
  const [soundAndFury, absalom, miceAndMen, grapesWarth, bellTolls] = books
  const [hemmingway, steinbeck, faulkner] = authors
  /* eslint-enable @typescript-eslint/no-unused-vars */

  it('should get a simple expression', (done) => {
    db.collections.books
      .findOne(soundAndFury.id)
      .exec()
      .then((doc) => {
        doc.jmespath$('title').subscribe({
          next: (result) => {
            expect(result).toEqual(soundAndFury.title)
            done()
          },
          error: done
        })
      })
  })

  it(`should populate an object: get the name of the author's book`, (done) => {
    db.collections.books
      .findOne(soundAndFury.id)
      .exec()
      .then((doc) => {
        doc.jmespath$('author.name').subscribe({
          next: (result) => {
            expect(result).toEqual(faulkner.name)
            done()
          },
          error: done
        })
      })
  })

  it('should populate an array: get books of an author', (done) => {
    const expected = books
      .filter((book) => book.author === faulkner.id)
      .map((book) => book.title)
    db.collections.authors
      .findOne(faulkner.id)
      .exec()
      .then((doc) => {
        doc.jmespath$('books[].title').subscribe({
          next: (result) => {
            expect(result).toEqual(expected)
            done()
          },
          error: done
        })
      })
  })

  it('should nest populations: get books of the same author', (done) => {
    const expected = books
      .filter((book) => book.author === faulkner.id)
      .map((book) => book.title)
    db.collections.books
      .findOne(soundAndFury.id)
      .exec()
      .then((doc) => {
        doc.jmespath$('author.books[].title').subscribe({
          next: (result) => {
            expect(result).toEqual(expected)
            done()
          },
          error: done
        })
      })
  })

  it('should update a field referenced in a population', (done) => {
    const name = 'Usurper'
    db.collections.books
      .findOne(soundAndFury.id)
      .exec()
      .then((doc) => {
        doc
          .jmespath$('author.name')
          .pipe(skip(1))
          .subscribe({
            next: (result) => {
              expect(result).toEqual(name)
              done()
            },
            error: done
          })
      })
    db.collections.authors
      .findOne(faulkner.id)
      .exec()
      .then((author) => {
        author.atomicPatch({ name })
      })
  })

  it('should update a field', (done) => {
    db.collections.books
      .findOne(absalom.id)
      .exec()
      .then(async (doc) => {
        const title = 'new book title'
        doc
          .jmespath$('title')
          .pipe(skip(1))
          .subscribe({
            next: (result) => {
              expect(result).toEqual(title)
              done()
            },
            error: done
          })
        await doc.atomicPatch({ title })
      })
  })
  it('should take deleted document into account', (done) => {
    db.collections.books
      .findOne(absalom.id)
      .remove()
      .then(async (doc) => {
        doc.jmespath$('title').subscribe({
          next: (result) => {
            expect(result).toBeNull()
            done()
          },
          error: done
        })
      })
  })

  it('should reflect a deleted document in a population', (done) => {
    const expected = books
      .filter(({ author, id }) => author === faulkner.id && id !== absalom.id)
      .map((book) => book.title)
    db.collections.authors
      .findOne(faulkner.id)
      .$.pipe(
        switchMap((doc) => doc.jmespath$('books[].title')),
        skip(1)
      )
      .subscribe({
        next: (result) => {
          expect(result).toEqual(expected)
          done()
        },
        error: done
      })
    db.collections.books
      .findOne(absalom.id)
      .exec()
      .then((doc) => doc.remove())
  })

  it('should use a function with a population', (done) => {
    db.collections.authors
      .findOne(hemmingway.id)
      .$.pipe(switchMap((doc) => doc.jmespath$('sort_by(books, &title)[]')))
      .subscribe({
        next: (result) => {
          expect(result.length).toEqual(1)
          expect(result[0].id).toEqual(bellTolls.id)
          done()
        },
        error: done
      })
  })

  // TODO TEST EXPRESSIONS IMPACTED BY toArray!!!

  it('should insert a document and take it into account', (done) => {
    const asILayDying: Book = {
      id: '10',
      title: 'As I Lay Dying',
      author: faulkner.id
    }
    const expected = [
      ...books
        .filter(({ author }) => author === faulkner.id)
        .map((book) => book.title),
      asILayDying.title
    ]
    db.collections.authors
      .findOne(faulkner.id)
      .$.pipe(
        switchMap((doc) => doc.jmespath$('books[].title')),
        skip(1)
      )
      .subscribe({
        next: (result) => {
          expect(result).toEqual(expected)
          done()
        },
        error: done
      })
    db.collections.books.insert(asILayDying).then((book) =>
      db.collections.authors
        .findOne(faulkner.id)
        .exec()
        .then((author) =>
          author.atomicPatch({ books: [...author.books, book.id] })
        )
    )
  })
})