Control Structures

if, else if, else

// AND, OR, NOT
if (a == 1 && b == 1) || a == 2 || !b {}

if a {}
else {}

if a == 1 {}
else if a == 2
else {}

switch

If using switch inside infinite loops, the break keyword will not be able to be used to end the loop, since it will be used by the switch.

switch choice {
    case 1:
        ...
        break
    case 2:
        ...
    default:
        ...
}

for-loops

Regular

for i := 0; i < 2; i++ {}

Infinite loops

Will run until you break.

May not break if a switch is inside. switch

for {
    // Until
    break
}

Bounded to a variable's value

Will run until boolVariable is false.

for boolVariable {}

Looping arrays

index and value are arbitrary names.

a := []int{1, 2, 3, 4}

// To get "index" and "value"
for index, value := range a {}

// To discard "index"
for _, value := range a {}

// To discard both "index" and "value"
for range a {}

Looping maps

key and value are arbitrary names.

m := map[string]int{
    "google": 1,
    "aws": 2,
}

// To get "key" and "value"
for key, value := range m {}

// To discard "key"
for _, value := range m {}

// To discard both "key" and "value"
for range m {}