Type Alias ReduceObject

ReduceObject: {
@reduce: (PipeItem[] | PipeObject | ReduceObject)[];
}

Reduce is similar to Pipe in that it represents a new context and may include an array of PipeItem[], PipeObject, or ReduceObject. But it also iterates and produces output. The context variables, $input, $output, $item, $key, and $index are available.

Example

// Example of a reduce expression. The optional object is empty and
// serves as the $output during iteration. The last step in the iteration
// sets $output. if ther are no more iterations, the $output is returned
// and provided to the next step in the pipeline.

// If data is:
// { response: ['a', 'b', 'c'] }

// The reduced/transformed expression will be:
// { 'a': 0, 'b': 1, 'c': 2 }

// Arrays and objects may be iterated over and transformed.

//YAML
'@pipe':
  - ['{data.response}', {}]
  - '@reduce':
      - '@pipe':
          - ['{$output}']
      - '@pipe':
          - ['{$item}']
      - '@pipe':
          - ['{$index}']
      - ['{@object.set}']

Type Alias ReduceObject

Example

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