84 lines
1.9 KiB
Go
84 lines
1.9 KiB
Go
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// For more tutorials: https://blog.learngoprogramming.com
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//
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// Copyright © 2018 Inanc Gumus
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// Learn Go Programming Course
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// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
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//
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package main
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import (
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"strings"
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s "github.com/inancgumus/prettyslice"
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)
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func main() {
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s.PrintBacking = true
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s.MaxPerLine = 10
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// #1: assume that tasks can be a long list
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// ---------------------------------------------
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tasks := []string{"jump", "run", "read"}
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// #2: INEFFICIENT WAY
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// ---------------------------------------------
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// var upTasks []string
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// s.Show("upTasks", upTasks)
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// for _, task := range tasks {
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// upTasks = append(upTasks, strings.ToUpper(task))
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// s.Show("upTasks", upTasks)
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// }
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// #3: SO SO WAY:
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// ---------------------------------------------
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// upTasks := make([]string, len(tasks))
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// s.Show("upTasks", upTasks)
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// for _, task := range tasks {
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// upTasks = append(upTasks, strings.ToUpper(task))
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// s.Show("upTasks", upTasks)
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// }
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// #4: SO SO WAY 2:
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// ---------------------------------------------
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// upTasks := make([]string, len(tasks))
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// s.Show("upTasks", upTasks)
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// for i, task := range tasks {
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// upTasks[i] = strings.ToUpper(task)
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// s.Show("upTasks", upTasks)
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// }
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// #5: allocates a new array
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// upTasks = append(upTasks, "PLAY")
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// s.Show("upTasks", upTasks)
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// #6: SO SO WAY 3
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// ---------------------------------------------
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// upTasks := make([]string, 0, len(tasks))
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// #7
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// upTasks = upTasks[:cap(upTasks)]
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// #6
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// s.Show("upTasks", upTasks)
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// for i, task := range tasks {
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// upTasks[i] = strings.ToUpper(task)
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// s.Show("upTasks", upTasks)
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// }
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// #8: THE BEST WAY
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// ---------------------------------------------
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upTasks := make([]string, 0, len(tasks))
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s.Show("upTasks", upTasks)
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for _, task := range tasks {
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upTasks = append(upTasks, strings.ToUpper(task))
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s.Show("upTasks", upTasks)
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}
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}
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