break and continue labels

break and continue statements can be use with label in Go, similar to goto statement. It is optional. Scope of labels are limited to the function and does not conflict with variable name, as it live in separate space. break and continue with label is only used in for, switch and select statements.

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OuterLoop:
    for i := 0; i < 3; i++ {
        for j := 0; j < 3; j++ {
            fmt.Printf("i=%v, j=%v\n", i, j)
            break OuterLoop
        }
    }

Output:

i=0, j=0

Above example breaks outer loop.

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OuterLoop:
    for i := 0; i < 3; i++ {
        for j := 0; j < 3; j++ {
            fmt.Printf("i=%v, j=%v\n", i, j)
            continue OuterLoop
        }
    }

Output:

i=0, j=0
i=1, j=0
i=2, j=0

continue with label continues the iteration of variables.