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39 lines
1.3 KiB
Go
39 lines
1.3 KiB
Go
// Copyright (c) 2023 IBM Corp.
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// All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package array
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import (
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M "github.com/IBM/fp-go/v2/monoid"
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)
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// ConcatAll concatenates all elements of an array using the provided Monoid.
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// This reduces the array to a single value by repeatedly applying the Monoid's concat operation.
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//
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// Example:
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//
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// import "github.com/IBM/fp-go/v2/monoid"
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//
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// // Sum all numbers
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// sumAll := array.ConcatAll(monoid.MonoidSum[int]())
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// result := sumAll([]int{1, 2, 3, 4, 5}) // 15
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//
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// // Concatenate all strings
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// concatStrings := array.ConcatAll(monoid.MonoidString())
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// result2 := concatStrings([]string{"Hello", " ", "World"}) // "Hello World"
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func ConcatAll[A any](m M.Monoid[A]) func([]A) A {
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return Reduce(m.Concat, m.Empty())
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}
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