@w11k/rx-ninja
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    Function skipPropertyNil

    • Skips values which contains null or undefined for the given property. Narrows the type of the given property within the object type from T | null | undefined to T.

      marble

      Example:

      const x: Observable<{ a: number, b: string | null | undefined }>;

      const z: Observable<{ a: number, b: string }> = x.pipe(
      skipPropertyNil('b')
      );

      value { a: 1, b: 'foo' } will pass through

      value { a: 1, b: null } will be skipped

      value { a: 1, b: undefined } will be skipped

      Type Parameters

      • T extends object
      • P extends string | number | symbol

      Parameters

      • prop: P

        name of the property to check

      Returns (source: Observable<T>) => Observable<PropertyNotNil<T, P>>