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v4.0
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    中文EN
    v4.0

      length() | Path Length

      Parameters, Value

      Path length function returns the length of the path, i.e. the number of edges in the path.

      Syntax:

      • Format: length(<path>)
      • Parameters: see table below
      • Value: ATTR ( number )
      Name Category Specification Description
      path PATH / the path to be calculated

      Common Usage

      Example: Find the shortest paths within 5 steps from card CA001 to CA002, and return the length of found paths

      n({_id == "CA001"}).e()[*:5].n({_id == "CA002"}) as paths
      limit 1
      return length(paths)
      
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