For in Go

In Go, the for loop is used to execute a block of code repeatedly until a certain condition is met. Here are a few examples to illustrate how to use for in Go:

1. Basic for loop:

for i := 0; i < 5; i++ {
  fmt.Println(i)
}

In this example, the for loop will start with the variable i equal to 0. It will then execute the code block once, and then increment i by 1. The loop will continue executing until i is no longer less than 5.

2. for range loop:

numbers := []int{2, 4, 6, 8, 10}
for index, value := range numbers {

  fmt.Println(index, value)

}

In this example, the for range loop is used to iterate over each value in the numbers array. The loop sets index to the current index in the array, and value to the current element's value. The loop will execute once for each element in the array.

3. for loop with break:

for i := 0; i < 10; i++ {
  if i == 5 {
    break
  }
  fmt.Println(i)
}

In this example, the for loop will execute until i is equal to 5. At that point, the break statement is used to exit the loop.

4. for loop with continue:

for i := 0; i < 10; i++ {
  if i == 5 {
    continue
  }
  fmt.Println(i)
}

In this example, the for loop will execute until i is equal to 10. However, if i is equal to 5, the continue statement is used to skip to the next iteration of the loop without executing the rest of the code block.