first

course/2-variables/exercises/8-computed_constants/code.go

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+package main
+
+import "fmt"
+
+func main() {
+	const secondsInMinute = 60
+	const minutesInHour = 60
+	const secondsInHour = // ?
+
+	// don't edit below this line
+	fmt.Println("number of seconds in an hour:", secondsInHour)
+}

course/2-variables/exercises/8-computed_constants/complete.go

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+package main
+
+import "fmt"
+
+func main() {
+	const secondsInMinute = 60
+	const minutesInHour = 60
+	const secondsInHour = secondsInMinute * minutesInHour
+
+	// don't edit below this line
+	fmt.Println("number of seconds in an hour:", secondsInHour)
+}

course/2-variables/exercises/8-computed_constants/expected.txt

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+number of seconds in an hour: 3600

course/2-variables/exercises/8-computed_constants/readme.md

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+# Computed Constants
+
+Constants must be known at compile time. More often than not they will be declared with a static value:
+
+```go
+const myInt = 15
+```
+
+However, constants *can be computed* so long as the computation can happen at *compile time*.
+
+For example, this is valid:
+
+```go
+const firstName = "Lane"
+const lastName = "Wagner"
+const fullName = firstName + " " + lastName
+```
+
+That said, you *cannot* declare a constant that can only be computed at run-time.
+
+## Assignment
+
+Keeping track of time in a message-sending application is *critical*. Imagine getting an appointment reminder an hour **after** your doctor's visit.
+
+Complete the code using a computed constant to print the number of seconds in an hour.