How can you ensure Karel doesn't run into a wall while moving?

Using an if statement to check frontIsClear() is a sound approach to prevent Karel from running into a wall. This method allows Karel to assess its immediate surroundings before making a movement. By checking if the front is clear, Karel can make decisions based on the information it receives: if the path ahead is clear, it can safely move forward; if there's a wall, Karel can either stay in place or take an alternative action, like turning.

While employing a while loop to check continuously is also a logical method, it can lead to unnecessary complexity and may not always be efficient in straightforward scenarios where a simple check is sufficient. Randomly turning would likely lead to unpredictable movement patterns and does not directly address the risk of colliding with walls. Teleporting past a wall would be a fantastical solution and not within the typical capabilities or logic applied in Karel's programming context. Hence, using an if statement is the most practical and effective choice in ensuring safe navigation for Karel.