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63 lines
1.5 KiB
Go
63 lines
1.5 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 function
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import (
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"fmt"
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)
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func addSthg(value int) int {
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return value + 1
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}
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func doSthgElse(value int) int {
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return value * 2
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}
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func doFinalSthg(value int) string {
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return fmt.Sprintf("final value: %d", value)
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}
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func Example() {
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// start point
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value := 1
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// imperative style
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value1 := addSthg(value) // 2
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value2 := doSthgElse(value1) // 4
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finalValueImperative := doFinalSthg(value2) // "final value: 4"
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// the same but inline
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finalValueInline := doFinalSthg(doSthgElse(addSthg(value)))
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// with pipe
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finalValuePipe := Pipe3(value, addSthg, doSthgElse, doFinalSthg)
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// with flow
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transform := Flow3(addSthg, doSthgElse, doFinalSthg)
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finalValueFlow := transform(value)
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fmt.Println(finalValueImperative)
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fmt.Println(finalValueInline)
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fmt.Println(finalValuePipe)
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fmt.Println(finalValueFlow)
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// Output:
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// final value: 4
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// final value: 4
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// final value: 4
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// final value: 4
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}
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