broadcast
Alias: array-to-broadcast
Overview
Executes an accumulator once over the full input enumerable, then returns the final accumulated value repeated once for each input element. Returns null when the input is not an enumerable or is a string.
Parameter
- accumulator: Factory that creates the accumulator instance used for the broadcast execution.
filter
Alias: filter
Overview
Applies a predicate expression to each input item and returns only items for which the predicate evaluates to true. Returns null when the input is not an enumerable or is a string.
first-elements
Alias: first
Overview
fold
Alias: array-to-fold
Overview
Executes an accumulator once over the full input enumerable and returns the final accumulated value. Returns null when the input is not an enumerable or is a string.
Parameter
- accumulator: Factory that creates the accumulator instance used for the fold execution.
lag
Alias: array-to-lag
Overview
Returns the previous value for each input element. The first output value is null because there is no previous element. Preserves input cardinality (one output item per input item). Returns null when the input is not an enumerable or is a string.
last-elements
Alias: last
Overview
lead
Alias: array-to-lead
Overview
Returns the next value for each input element. The last output value is null because there is no next element. Preserves input cardinality (one output item per input item). Returns null when the input is not an enumerable or is a string.
map
Alias: map
Overview
Applies a transformation expression to each input item and returns the transformed values. Preserves input cardinality (one output item per input item). Returns null when the input is not an enumerable or is a string.
scan
Alias: array-to-scan
Overview
Executes an accumulator progressively over the input enumerable and returns the intermediate accumulated value after each input element. Preserves input cardinality (one output item per input item). This differs from fold (final value only) and broadcast (final value repeated). Returns null when the input is not an enumerable or is a string.
Parameter
- accumulator: Factory that creates the accumulator instance used for the scan execution.
