remove number for source

src/sorting-by-functions/sorting-by-functions.go

@@ -0,0 +1,54 @@
+// ## Sorting by Functions
+
+package main
+
+import (
+    "fmt"
+    "sort"
+)
+
+type Person struct {
+    Name string
+    Age  int
+}
+
+type ByName []Person
+
+func (this ByName) Len() int {
+    return len(this)
+}
+func (this ByName) Less(i, j int) bool {
+    return this[i].Name < this[j].Name
+}
+func (this ByName) Swap(i, j int) {
+    this[i], this[j] = this[j], this[i]
+}
+
+type ByAge []Person
+
+func (this ByAge) Len() int {
+    return len(this)
+}
+func (this ByAge) Less(i, j int) bool {
+    return this[i].Age < this[j].Age
+}
+func (this ByAge) Swap(i, j int) {
+    this[i], this[j] = this[j], this[i]
+}
+
+func main() {
+    kids := []Person{
+        {"Jack", 10},
+        {"Jill", 9},
+        {"Bob", 12},
+    }
+    fmt.Println("Original:", kids)
+
+    sort.Sort(ByName(kids))
+    fmt.Println("ByName:  ", kids)
+
+    sort.Sort(ByAge(kids))
+    fmt.Println("ByAge:   ", kids)
+}
+
+// todo: pull from blog post

src/sorting-by-functions/sorting-by-functions.sh

@@ -0,0 +1,4 @@
+$ go run sorting-by-function.go 
+Original: [{Jack 10} {Jill 9} {Bob 12}]
+ByName:   [{Bob 12} {Jack 10} {Jill 9}]
+ByAge:    [{Jill 9} {Jack 10} {Bob 12}]