package main
var f = func(x int) {}
func Bar() {
f := func(x int) {
if x >= 0 {
print(x)
f(x - 1)
}
}
f(2)
}
func Foo() {
f = func(x int) {
if x >= 0 {
print(x)
f(x - 1)
}
}
f(2)
}
func main() {
Bar()
print(" | ")
Foo()
}
Choices:
Answer: 2 | 210
Run it on Go play.
Key points:
Bar function, the second f (the one in the call f(x - 1)) is the package-level f.
Foo function, all three f are the package-level f.
Please read code blocks and identifier scopes for more detailed explanations.
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