Add Parse A String Into Individual Fields as a Go TIL

go/parse-a-string-into-individual-fields.md

@@ -0,0 +1,39 @@
+# Parse A String Into Individual Fields
+
+Let's say you're reading in data from a file or otherwise dealing with an
+arbitrary string of data. If that string has a series of values separated by
+whitespace, you can parse it into individual fields with
+[`strings.Fields`](https://pkg.go.dev/strings#Fields).
+
+```go
+import (
+	"fmt"
+	"strings"
+)
+
+func main() {
+	data := "3 5 2 6 7 1 9"
+	fields := strings.Fields(data)
+
+	fmt.Printf("Fields: %v", fields)
+	// [3 5 2 6 7 1 9]
+}
+```
+
+Here is another example where we can see that `strings.Fields` deals with
+multiple whitespace and surrounding whitespace:
+
+```go
+import (
+	"fmt"
+	"strings"
+)
+
+func main() {
+	data := "  go  java c++ rust "
+	fields := strings.Fields(data)
+
+	fmt.Printf("%v", fields)
+	// [go java c++ rust]
+}
+```