What happens when this receive operation is reached?

var ch chan int
v := <-ch
_ = v

What is the effect of an unrecovered panic in a goroutine?

Which statement about sync.RWMutex is correct?

Which statement about atomic operations is correct?

What is the important difference between %w and %v when an error is passed to fmt.Errorf?

Which command runs tests with Go's race detector enabled?

What happens when receiving from a closed channel after all buffered values have been received?

What can happen when append exceeds the capacity of a slice?

Why are parameterized SQL queries preferred over building queries by concatenating untrusted input?

What is printed by the following Go code?

m := map[string]int{"a": 1}
v, ok := m["b"]
fmt.Print(v, ok)