changed playground to make it less error prone and easier to add programs

README.md

@@ -4,7 +4,9 @@ Playing with Golang mostly using the Head First Go book.
 
 Entry point is playground.go.
 
-To run use
+To run the playground use
 ```sh
+cd playground
 go run trying_out_go
 ```
+For any other folders, these are all separate go programs. Use the commands above and edit playground and trying_out_go to the matching folder name.

average.go

@@ -1,13 +0,0 @@
-package main
-
-import "fmt"
-
-func average() {
-	numbers := [3]float64{71.8, 56.2, 89.5}
-	var sum float64 = 0
-	for _, number := range numbers {
-		sum += number
-	}
-	sampleCount := float64(len(numbers))
-	fmt.Printf("Average: %0.2f\n", sum/sampleCount)
-}

averageWithArgs/averageWithArgs.go

@@ -0,0 +1,22 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"strconv"
+)
+
+func main() {
+	arguments := os.Args[1:]
+	var sum float64 = 0
+	for _, argument := range arguments {
+		number, err := strconv.ParseFloat(argument, 64)
+		if err != nil {
+			log.Fatal(err)
+		}
+		sum += number
+	}
+	sampleCount := float64(len(arguments))
+	fmt.Printf("Average: %0.2f\n", sum/sampleCount)
+}

averageWithArgs/go.mod

@@ -0,0 +1,3 @@
+module averageWithArgs
+
+go 1.21.3

datafile.txt

@@ -0,0 +1,4 @@
+50.2
+60.2
+74.3
+85.4

headFirstCodeMagnets/variadic.go

@@ -0,0 +1,18 @@
+package main
+
+import "fmt"
+
+func sum(numbers ...int) int {
+	var sum int = 0
+
+	for _, number := range numbers {
+		sum += number
+	}
+
+	return sum
+}
+
+func main() {
+	fmt.Println(sum(4, 1, 9, 2))
+	fmt.Println(sum(7))
+}

playground.go

@@ -1,50 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"log"
-
-	"github.com/dixonwille/wmenu/v5"
-)
-
-func main() {
-	menu := wmenu.NewMenu("Choose a program.")
-	menu.Action(func(opts []wmenu.Opt) error {
-		fmt.Printf("You chose " + opts[0].Text + ". Launching...\n")
-		switch opts[0].Text {
-		case "Pass or Fail":
-			passFail()
-		case "Guessing Game":
-			guess()
-		case "Shopping List":
-			shopping()
-		case "Commandline Test":
-			terminalTest()
-		case "Wall Area":
-			wallArea()
-		case "myIntPointer":
-			myIntPointer()
-		case "Double":
-			double()
-		case "Convert To Celsius":
-			toCelsius()
-		case "Get the Average":
-			average()
-		}
-		return nil
-	})
-	menu.PadOptionID()
-	menu.Option("Pass or Fail", nil, false, nil)
-	menu.Option("Guessing Game", nil, false, nil)
-	menu.Option("Shopping List", nil, false, nil)
-	menu.Option("Commandline Test", nil, false, nil)
-	menu.Option("Wall Area", nil, false, nil)
-	menu.Option("myIntPointer", nil, false, nil)
-	menu.Option("Double", nil, false, nil)
-	menu.Option("Convert To Celsius", nil, false, nil)
-	menu.Option("Get the Average", nil, false, nil)
-	err := menu.Run()
-	if err != nil {
-		log.Fatal(err)
-	}
-}

playground/averageHeadFirstSolution.go

@@ -0,0 +1,24 @@
+package main
+
+import (
+	"fmt"
+	"strings"
+
+	"git.linuxhg.com/john-okeefe/datafile"
+	"git.linuxhg.com/john-okeefe/keyboard"
+)
+
+func averageHeadFirstSolution() {
+	fmt.Printf("What is the name of the file: ")
+	fileString, err := keyboard.GetString()
+	Error(err)
+	fileString = strings.TrimSpace(fileString)
+	numbers, err := datafile.GetFloats(fileString)
+	Error(err)
+	var sum float64 = 0
+	for _, number := range numbers {
+		sum += number
+	}
+	sampleCount := float64(len(numbers))
+	fmt.Printf("Average: %0.2f\n", sum/sampleCount)
+}

playground/averageHeadFirstVariadic.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+)
+
+func averageCalc(numbers ...float64) float64 {
+	var sum float64 = 0
+	for _, number := range numbers {
+		sum += number
+	}
+	return sum / float64(len(numbers))
+}
+
+func averageHeadFirstVariadic() {
+	arguments := os.Args[1:]
+	var numbers []float64
+	for _, argument := range arguments {
+		number, err := strconv.ParseFloat(argument, 64)
+		Error(err)
+		numbers = append(numbers, number)
+	}
+	fmt.Printf("Average: %0.2\n", averageCalc(numbers...))
+}

playground/averageMySolution.go

@@ -0,0 +1,37 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"log"
+	"os"
+	"strconv"
+	"strings"
+
+	"git.linuxhg.com/john-okeefe/keyboard"
+)
+
+func averageMySolution() {
+	fmt.Printf("What is the name of the file: ")
+	fileString, err := keyboard.GetString()
+	Error(err)
+	fileString = strings.TrimSpace(fileString)
+	file, err := os.Open(fileString)
+	Error(err)
+	var sum float64 = 0
+	scanner := bufio.NewScanner(file)
+	counter := 0
+	for scanner.Scan() {
+		number, err := strconv.ParseFloat(scanner.Text(), 64)
+		Error(err)
+		sum += number
+		counter++
+	}
+	err = file.Close()
+	Error(err)
+	if scanner.Err() != nil {
+		log.Fatal(scanner.Err())
+	}
+	sampleCount := float64(counter)
+	fmt.Printf("Average: %0.2f\n", sum/sampleCount)
+}

playground/averageVariadic.go

@@ -0,0 +1,16 @@
+package main
+
+import "fmt"
+
+func average(numbers ...float64) float64 {
+	var sum float64 = 0
+	for _, number := range numbers {
+		sum += number
+	}
+	return sum / float64(len(numbers))
+}
+
+func averageVariadic() {
+	fmt.Println(average(100, 50))
+	fmt.Println(average(90.7, 89.7, 98.5, 92.3))
+}

playground/countVotes.go

@@ -0,0 +1,56 @@
+// from Chapter 7 of Head First Go
+package main
+
+import (
+	"fmt"
+	"git.linuxhg.com/john-okeefe/datafile"
+	"git.linuxhg.com/john-okeefe/keyboard"
+	"sort"
+	"strings"
+)
+
+func countVotes() {
+	fmt.Printf("What is the name of the file: ")
+	fileString, err := keyboard.GetString()
+	Error(err)
+	fileString = strings.TrimSpace(fileString)
+	lines, err := datafile.GetStrings(fileString)
+	Error(err)
+
+	// Count the hard way with slices
+	var names []string
+	var counts []int
+	for _, line := range lines {
+		matched := false
+		for i, name := range names {
+			if name == line {
+				counts[i]++
+				matched = true
+			}
+		}
+		if matched == false {
+			names = append(names, line)
+			counts = append(counts, 1)
+		}
+	}
+
+	for i, name := range names {
+		fmt.Printf("%s: %d\n", name, counts[i])
+	}
+
+	fmt.Println("")
+
+	// Easy way
+	votes := make(map[string]int)
+	var namesMap []string
+	for _, line := range lines {
+		votes[line]++
+	}
+	for name := range votes {
+		namesMap = append(namesMap, name)
+	}
+	sort.Strings(namesMap)
+	for _, name := range namesMap {
+		fmt.Printf("%v: %v\n", name, votes[name])
+	}
+}

playground/error.go

@@ -0,0 +1,10 @@
+package main
+
+import "log"
+
+func Error(err error) {
+	if err != nil {
+		log.Fatal(err)
+	}
+	return
+}

playground/go.mod

@@ -3,9 +3,10 @@ module trying_out_go
 go 1.21.3
 
 require (
-	git.linuxhg.com/john-okeefe/keyboard v0.0.0-20231016161119-714c103574cc
-	github.com/charmbracelet/bubbles v0.16.1
-	github.com/charmbracelet/bubbletea v0.24.2
+	git.linuxhg.com/john-okeefe/datafile v0.0.0-20231219141638-ac759640d76a
+	git.linuxhg.com/john-okeefe/keyboard v0.0.0-20231016162410-a86e636ae533
+	github.com/charmbracelet/bubbles v0.17.1
+	github.com/charmbracelet/bubbletea v0.25.0
 	github.com/charmbracelet/lipgloss v0.9.1
 	github.com/dixonwille/wmenu/v5 v5.1.0
 )
@@ -25,7 +26,7 @@ require (
 	github.com/muesli/reflow v0.3.0 // indirect
 	github.com/muesli/termenv v0.15.2 // indirect
 	github.com/rivo/uniseg v0.4.4 // indirect
-	github.com/sahilm/fuzzy v0.1.0 // indirect
+	github.com/sahilm/fuzzy v0.1.1-0.20230530133925-c48e322e2a8f // indirect
 	golang.org/x/sync v0.4.0 // indirect
 	golang.org/x/sys v0.13.0 // indirect
 	golang.org/x/term v0.13.0 // indirect

playground/go.sum

@@ -1,24 +1,29 @@
-git.linuxhg.com/john-okeefe/keyboard v0.0.0-20231016005355-05ed8b28800e h1:oCGqHZUhesu14KQUELz0jxIPnL/KcGFhsmNnKoAZMo4=
-git.linuxhg.com/john-okeefe/keyboard v0.0.0-20231016005355-05ed8b28800e/go.mod h1:zxW/S0TzdzmyfloJ0ZHwMaTjMgfd8hK8TycSEAyMRkY=
+git.linuxhg.com/john-okeefe/datafile v0.0.0-20231025144217-70a69b064e81 h1:M19j4vHPgap0R7r3Lc0C5QZIjBFixkwuvRnUGDIC9+o=
+git.linuxhg.com/john-okeefe/datafile v0.0.0-20231025144217-70a69b064e81/go.mod h1:HexHt1UMGUDMV5bhB81nAKdvGaCnxKA2upRd7cV8laI=
+git.linuxhg.com/john-okeefe/datafile v0.0.0-20231219141638-ac759640d76a h1:TZ/nNuTzuOXWeLt8SF/NJOHbIPjNcIxMk8xKMsy02O8=
+git.linuxhg.com/john-okeefe/datafile v0.0.0-20231219141638-ac759640d76a/go.mod h1:HexHt1UMGUDMV5bhB81nAKdvGaCnxKA2upRd7cV8laI=
 git.linuxhg.com/john-okeefe/keyboard v0.0.0-20231016161119-714c103574cc h1:J5VWew9I6gCCYVxQ/5NEtsD4wcMZcc4e05V44OiSNi4=
 git.linuxhg.com/john-okeefe/keyboard v0.0.0-20231016161119-714c103574cc/go.mod h1:zxW/S0TzdzmyfloJ0ZHwMaTjMgfd8hK8TycSEAyMRkY=
+git.linuxhg.com/john-okeefe/keyboard v0.0.0-20231016162410-a86e636ae533 h1:aT1lCBtfeLL/BfQC90TA7zHUQu2D4IxiT+3hN3Jel/E=
+git.linuxhg.com/john-okeefe/keyboard v0.0.0-20231016162410-a86e636ae533/go.mod h1:zxW/S0TzdzmyfloJ0ZHwMaTjMgfd8hK8TycSEAyMRkY=
 github.com/atotto/clipboard v0.1.4 h1:EH0zSVneZPSuFR11BlR9YppQTVDbh5+16AmcJi4g1z4=
 github.com/atotto/clipboard v0.1.4/go.mod h1:ZY9tmq7sm5xIbd9bOK4onWV4S6X0u6GY7Vn0Yu86PYI=
 github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
 github.com/aymanbagabas/go-osc52/v2 v2.0.1/go.mod h1:uYgXzlJ7ZpABp8OJ+exZzJJhRNQ2ASbcXHWsFqH8hp8=
 github.com/charmbracelet/bubbles v0.16.1 h1:6uzpAAaT9ZqKssntbvZMlksWHruQLNxg49H5WdeuYSY=
 github.com/charmbracelet/bubbles v0.16.1/go.mod h1:2QCp9LFlEsBQMvIYERr7Ww2H2bA7xen1idUDIzm/+Xc=
+github.com/charmbracelet/bubbles v0.17.1 h1:0SIyjOnkrsfDo88YvPgAWvZMwXe26TP6drRvmkjyUu4=
+github.com/charmbracelet/bubbles v0.17.1/go.mod h1:9HxZWlkCqz2PRwsCbYl7a3KXvGzFaDHpYbSYMJ+nE3o=
 github.com/charmbracelet/bubbletea v0.24.2 h1:uaQIKx9Ai6Gdh5zpTbGiWpytMU+CfsPp06RaW2cx/SY=
 github.com/charmbracelet/bubbletea v0.24.2/go.mod h1:XdrNrV4J8GiyshTtx3DNuYkR1FDaJmO3l2nejekbsgg=
-github.com/charmbracelet/lipgloss v0.8.0 h1:IS00fk4XAHcf8uZKc3eHeMUTCxUH6NkaTrdyCQk84RU=
-github.com/charmbracelet/lipgloss v0.8.0/go.mod h1:p4eYUZZJ/0oXTuCQKFF8mqyKCz0ja6y+7DniDDw5KKU=
+github.com/charmbracelet/bubbletea v0.25.0 h1:bAfwk7jRz7FKFl9RzlIULPkStffg5k6pNt5dywy4TcM=
+github.com/charmbracelet/bubbletea v0.25.0/go.mod h1:EN3QDR1T5ZdWmdfDzYcqOCAps45+QIJbLOBxmVNWNNg=
 github.com/charmbracelet/lipgloss v0.9.1 h1:PNyd3jvaJbg4jRHKWXnCj1akQm4rh8dbEzN1p/u1KWg=
 github.com/charmbracelet/lipgloss v0.9.1/go.mod h1:1mPmG4cxScwUQALAAnacHaigiiHB9Pmr+v1VEawJl6I=
 github.com/containerd/console v1.0.4-0.20230313162750-1ae8d489ac81 h1:q2hJAaP1k2wIvVRd/hEHD7lacgqrCPS+k8g1MndzfWY=
 github.com/containerd/console v1.0.4-0.20230313162750-1ae8d489ac81/go.mod h1:YynlIjWYF8myEu6sdkwKIvGQq+cOckRm6So2avqoYAk=
 github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/daviddengcn/go-colortext v0.0.0-20180409174941-186a3d44e920 h1:d/cVoZOrJPJHKH1NdeUjyVAWKp4OpOT+Q+6T1sH7jeU=
 github.com/daviddengcn/go-colortext v0.0.0-20180409174941-186a3d44e920/go.mod h1:dv4zxwHi5C/8AeI+4gX4dCWOIvNi7I6JCSX0HvlKPgE=
 github.com/daviddengcn/go-colortext v1.0.0 h1:ANqDyC0ys6qCSvuEK7l3g5RaehL/Xck9EX8ATG8oKsE=
 github.com/daviddengcn/go-colortext v1.0.0/go.mod h1:zDqEI5NVUop5QPpVJUxE9UO10hRnmkD5G4Pmri9+m4c=
@@ -30,7 +35,6 @@ github.com/golangplus/bytes v0.0.0-20160111154220-45c989fe5450/go.mod h1:Bk6SMAO
 github.com/golangplus/bytes v1.0.0/go.mod h1:AdRaCFwmc/00ZzELMWb01soso6W1R/++O1XL80yAn+A=
 github.com/golangplus/fmt v0.0.0-20150411045040-2a5d6d7d2995/go.mod h1:lJgMEyOkYFkPcDKwRXegd+iM6E7matEszMG5HhwytU8=
 github.com/golangplus/fmt v1.0.0/go.mod h1:zpM0OfbMCjPtd2qkTD/jX2MgiFCqklhSUFyDW44gVQE=
-github.com/golangplus/testing v0.0.0-20180327235837-af21d9c3145e h1:KhcknUwkWHKZPbFy2P7jH5LKJ3La+0ZeknkkmrSgqb0=
 github.com/golangplus/testing v0.0.0-20180327235837-af21d9c3145e/go.mod h1:0AA//k/eakGydO4jKRoRL2j92ZKSzTgj9tclaCrvXHk=
 github.com/golangplus/testing v1.0.0 h1:+ZeeiKZENNOMkTTELoSySazi+XaEhVO0mb+eanrSEUQ=
 github.com/golangplus/testing v1.0.0/go.mod h1:ZDreixUV3YzhoVraIDyOzHrr76p6NUh6k/pPg/Q3gYA=
@@ -39,19 +43,13 @@ github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+
 github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
 github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
 github.com/mattn/go-isatty v0.0.11/go.mod h1:PhnuNfih5lzO57/f3n+odYbM4JtupLOxQOAqxQCu2WE=
-github.com/mattn/go-isatty v0.0.18 h1:DOKFKCQ7FNG2L1rbrmstDN4QVRdS89Nkh85u68Uwp98=
-github.com/mattn/go-isatty v0.0.18/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/mattn/go-isatty v0.0.19 h1:JITubQf0MOLdlGRuRq+jtsDlekdYPia9ZFsB8h/APPA=
 github.com/mattn/go-isatty v0.0.19/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/mattn/go-localereader v0.0.1 h1:ygSAOl7ZXTx4RdPYinUpg6W99U8jWvWi9Ye2JC/oIi4=
 github.com/mattn/go-localereader v0.0.1/go.mod h1:8fBrzywKY7BI3czFoHkuzRoWE9C+EiG4R1k4Cjx5p88=
 github.com/mattn/go-runewidth v0.0.12/go.mod h1:RAqKPSqVFrSLVXbA8x7dzmKdmGzieGRCM46jaSJTDAk=
-github.com/mattn/go-runewidth v0.0.14 h1:+xnbZSEeDbOIg5/mE6JF0w6n9duR1l3/WmbinWVwUuU=
-github.com/mattn/go-runewidth v0.0.14/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
 github.com/mattn/go-runewidth v0.0.15 h1:UNAjwbU9l54TA3KzvqLGxwWjHmMgBUVhBiTjelZgg3U=
 github.com/mattn/go-runewidth v0.0.15/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
-github.com/muesli/ansi v0.0.0-20211018074035-2e021307bc4b h1:1XF24mVaiu7u+CFywTdcDo2ie1pzzhwjt6RHqzpMU34=
-github.com/muesli/ansi v0.0.0-20211018074035-2e021307bc4b/go.mod h1:fQuZ0gauxyBcmsdE3ZT4NasjaRdxmbCS0jRHsrWu3Ho=
 github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 h1:ZK8zHtRHOkbHy6Mmr5D264iyp3TiX5OmNcI5cIARiQI=
 github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6/go.mod h1:CJlz5H+gyd6CUWT45Oy4q24RdLyn7Md9Vj2/ldJBSIo=
 github.com/muesli/cancelreader v0.2.2 h1:3I4Kt4BQjOR54NavqnDogx/MIoWBFa0StPA8ELUXHmA=
@@ -63,32 +61,25 @@ github.com/muesli/termenv v0.15.2/go.mod h1:Epx+iuz8sNs7mNKhxzH4fWXGNpZwUaJKRS1n
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/rivo/uniseg v0.1.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
-github.com/rivo/uniseg v0.2.0 h1:S1pD9weZBuJdFmowNwbpi7BJ8TNftyUImj/0WQi72jY=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rivo/uniseg v0.4.4 h1:8TfxU8dW6PdqD27gjM8MVNuicgxIjxpm4K7x4jp8sis=
 github.com/rivo/uniseg v0.4.4/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
 github.com/sahilm/fuzzy v0.1.0 h1:FzWGaw2Opqyu+794ZQ9SYifWv2EIXpwP4q8dY1kDAwI=
 github.com/sahilm/fuzzy v0.1.0/go.mod h1:VFvziUEIMCrT6A6tw2RFIXPXXmzXbOsSHF0DOI8ZK9Y=
+github.com/sahilm/fuzzy v0.1.1-0.20230530133925-c48e322e2a8f h1:MvTmaQdww/z0Q4wrYjDSCcZ78NoftLQyHBSLW/Cx79Y=
+github.com/sahilm/fuzzy v0.1.1-0.20230530133925-c48e322e2a8f/go.mod h1:VFvziUEIMCrT6A6tw2RFIXPXXmzXbOsSHF0DOI8ZK9Y=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
-golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o=
-golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.4.0 h1:zxkM55ReGkDlKSM+Fu41A+zmbZuaPVbGMzvvdUPznYQ=
 golang.org/x/sync v0.4.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
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 golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.7.0 h1:3jlCCIQZPdOYu1h8BkNvLz8Kgwtae2cagcG/VamtZRU=
-golang.org/x/sys v0.7.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.13.0 h1:Af8nKPmuFypiUBjVoU9V20FiaFXOcuZI21p0ycVYYGE=
 golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/term v0.6.0 h1:clScbb1cHjoCkyRbWwBEUZ5H/tIFu5TAXIqaZD0Gcjw=
-golang.org/x/term v0.6.0/go.mod h1:m6U89DPEgQRMq3DNkDClhWw02AUbt2daBVO4cn4Hv9U=
 golang.org/x/term v0.13.0 h1:bb+I9cTfFazGW51MZqBVmZy7+JEJMouUHTUSKVQLBek=
 golang.org/x/term v0.13.0/go.mod h1:LTmsnFJwVN6bCy1rVCoS+qHT1HhALEFxKncY3WNNh4U=
-golang.org/x/text v0.3.8 h1:nAL+RVCQ9uMn3vJZbV+MRnydTJFPf8qqY42YiA6MrqY=
-golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=
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playground/magazineSubscribers.go

@@ -0,0 +1,22 @@
+// from chapter 8 of head first go
+package main
+
+import "fmt"
+
+type subscriberType struct {
+	name   string
+	rate   float64
+	active bool
+}
+
+func magazineSubscribers() {
+
+	var subscriber subscriberType
+
+	subscriber.name = "Aman Singh"
+	subscriber.rate = 4.99
+	subscriber.active = true
+	fmt.Println("Name:", subscriber.name)
+	fmt.Println("Monthly rate:", subscriber.rate)
+	fmt.Println("Active?:", subscriber.active)
+}

playground/playground.go

@@ -0,0 +1,127 @@
+package main
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/dixonwille/wmenu/v5"
+)
+
+func main() {
+	type program struct {
+		name           string
+		launchFunction func()
+	}
+
+	programs := []program{
+		{
+			name: "Pass or Fail",
+			launchFunction: func() {
+				passFail()
+			},
+		},
+		{
+			name: "Guessing Game",
+			launchFunction: func() {
+				guess()
+			},
+		},
+		{
+			name: "Shopping List",
+			launchFunction: func() {
+				shopping()
+			},
+		},
+		{
+			name: "Commandline Test",
+			launchFunction: func() {
+				terminalTest()
+			},
+		},
+		{
+			name: "Wall Area",
+			launchFunction: func() {
+				wallArea()
+			},
+		},
+		{
+			name: "myIntPointer",
+			launchFunction: func() {
+				myIntPointer()
+			},
+		},
+		{
+			name: "Double",
+			launchFunction: func() {
+				double()
+			},
+		},
+		{
+			name: "Convert To Celsius",
+			launchFunction: func() {
+				toCelsius()
+			},
+		},
+		{
+			name: "Get the Average My Solution",
+			launchFunction: func() {
+				averageMySolution()
+			},
+		},
+		{
+			name: "Get the Average Head First Solution",
+			launchFunction: func() {
+				averageHeadFirstSolution()
+			},
+		},
+		{
+			name: "Get the Average Variadic",
+			launchFunction: func() {
+				averageVariadic()
+			},
+		},
+		{
+			name: "Slices",
+			launchFunction: func() {
+				slices()
+			},
+		},
+		{
+			name: "Variadic Functions",
+			launchFunction: func() {
+				variadic()
+			},
+		},
+		{
+			name: "Count Votes",
+			launchFunction: func() {
+				countVotes()
+			},
+		},
+		{
+			name: "Magazine Subscribers",
+			launchFunction: func() {
+				magazineSubscribers()
+			},
+		},
+	}
+	menu := wmenu.NewMenu("Choose a program.")
+	menu.Action(func(opts []wmenu.Opt) error {
+		fmt.Printf("You chose " + opts[0].Text + ". Launching...\n")
+		for _, v := range programs {
+			if v.name == opts[0].Text {
+				v.launchFunction()
+			}
+		}
+
+		return nil
+	})
+	menu.PadOptionID()
+	for _, option := range programs {
+		menu.Option(option.name, nil, false, nil)
+	}
+	err := menu.Run()
+	if err != nil {
+		log.Fatal(err)
+	}
+}

playground/slices.go

@@ -0,0 +1,41 @@
+package main
+
+import "fmt"
+
+func slices() {
+	var notes []string
+	notes = make([]string, 7)
+
+	notes[0] = "do"
+	notes[1] = "re"
+	notes[2] = "mi"
+
+	fmt.Println(notes[0])
+	fmt.Println(notes[1])
+	fmt.Println(len(notes))
+
+	primes := make([]int, 5)
+	primes[0] = 2
+	primes[1] = 3
+	primes[2] = 5
+	primes[3] = 7
+	primes[4] = 11
+	fmt.Println(primes[0])
+	fmt.Println(primes[1])
+	fmt.Println(primes[2])
+	fmt.Println(primes[3])
+	fmt.Println(primes[4])
+	fmt.Println(len(primes))
+
+	literalNotes := []string{"do", "re", "mi", "fa", "so", "la", "ti"}
+	fmt.Println(literalNotes[3], literalNotes[6], literalNotes[0])
+	literalPrimes := []int{
+		2,
+		3,
+		5,
+	}
+	fmt.Println(literalPrimes[0], literalPrimes[1], literalPrimes[2])
+	fmt.Println(literalPrimes, len(literalPrimes))
+	literalPrimes = append(literalPrimes, 7, 11)
+	fmt.Println(literalPrimes, len(literalPrimes))
+}

playground/variadic.go

@@ -0,0 +1,33 @@
+package main
+
+import (
+	"fmt"
+	"math"
+)
+
+func maximum(numbers ...float64) float64 {
+	max := math.Inf(-1)
+	for _, number := range numbers {
+		if number > max {
+			max = number
+		}
+	}
+	return max
+}
+
+func inRange(min float64, max float64, numbers ...float64) []float64 {
+	var result []float64
+	for _, number := range numbers {
+		if number >= min && number <= max {
+			result = append(result, number)
+		}
+	}
+	return result
+}
+
+func variadic() {
+	fmt.Println(maximum(71.8, 56.2, 89.5))
+	fmt.Println(maximum(90.7, 89.7, 98.5, 92.3))
+	fmt.Println(inRange(1, 100, -12.5, 3.2, 0, 50, 103.5))
+	fmt.Println(inRange(-10, 10, 4.1, 12, -12, -5.2))
+}

votes.txt

@@ -0,0 +1,97 @@
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Brian Martin
+Amber Graham
+Carloz Diaz
+Silly name