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18 lines
404 B
Go
18 lines
404 B
Go
package fn
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// Reducer represents a function that takes an accumulator and the value, then
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// returns a new accumulator.
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type Reducer[T, V any] func(accum T, value V) T
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// Reduce takes a slice of something, and a reducer, and produces a final
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// accumulated value.
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func Reduce[T any, V any, S []V](s S, f Reducer[T, V]) T {
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var accum T
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for _, x := range s {
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accum = f(accum, x)
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}
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return accum
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}
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