Control structures

In Go lang, loops are simplified. There is no for, foreach, while, dowhile etc. There is just a for loop.

for loop

A minimum and an infinite for loop. Ended by break statement:

for {
    //statements
    break
}

Typical for loop pattern - follows C pattern:

for i=0; i<count; i++{
    //statements
    //executes until i reaches count
}

Conditional for loop (like a while loop):

for <condition>{
    // executes until condition remains true
}

Foreach style loop:

for index,element := range <slice/array> {
    //statements
    // range is an enumerator keyword
    break
}

if statements

Comparison operators commonly used with if: <, >, <=, >=, ==, !=. Logical operators: &&, ||, ! for AND, OR, NOT evaluations.

if <condition> {
    //statements, executes if eval to True
}

//single condition
if remainingTickets < 0 {
    //
}

// complex condition
if (remainingTickets < 0) && (len(bookings) > 10) {
    // two evals using and operator
}

if-else, if-else-if statements

if <condition> {

}
else {

}

if <condition> {

}
else if{

}
else {

}

Switch statements

city := "London"

switch city {
    case "New York":
        //statements
    case "Mumbai":
        //statements
    case "London":
        //statements
    case "Los Angeles", "Pasadena":  //common outcome
        // statments for LA and Pas
    default:
        //statements
}