Iteration

Loop

• The loop statement repeats a block of code a specified number of times.

Example

loop 5 (
 command
 command
)

Syntax

loop number_of_times (
  commands
)

• number_of_times: The number of times to repeat the block of commands.

• commands: The commands to be executed within the loop.

Example

loop 3 (
  moveForward
  turnLeft
)

In this example, the robot will move forward and then turn left three times.

Use Cases

Fibonacci Sequence Generation:

// Generate Fibonacci sequence up to n terms
def "total_loops.fibonacci()"
  a = 0
  b = 0
  c = 1
  loop total_loops (
    a = b + c
    b = c
    c = a
  )
  return c
endef

// Usage:
loop 10 (
  say 5.fibonacci()
)

This example demonstrates how the loop command can be used to repeatedly generate the Fibonacci sequence with a specified number of terms.

Repeated Task Execution:

// Perform a task repeatedly for a certain duration
def "performTask"
  // Your task implementation goes here
endef

// Usage:
loop 10 (
  performTask
)

Here, the loop command is used to execute a task function multiple times, which can be useful for performing repetitive tasks within a program.

For

// Usage:
for i 10 (
  log i
)
// logs the numbers 1-10

// Usage:
for i list.len (
  log list[i]
)
// logs the items in array "list"

Each

// Usage:
each i item list (
  log i
  log item
  log list[i]
)
// logs the items in array "list"

Break Statement

The break statement allows you to exit a loop early when a certain condition is met.

Example

// Exit loop when a condition is met
loop 10 (
  if i > 5 (
    break  // Exits the loop when i is greater than 5
  )
  log i
)
// Only logs numbers 1-5

// Break in for loop
for i 10 (
  if i == 7 (
    break  // Exits when i equals 7
  )
  log i
)
// Only logs numbers 1-6

// Break in each loop
each i item list (
  if item == "stop" (
    break  // Exits when finding "stop"
  )
  log item
)

The break statement is useful when you need to exit a loop before its normal completion, such as when searching for a specific value or when a certain condition is met.