Summary

Loops repeat code until a condition changes. A for_loop uses an initializer, test, and update. A while_loop repeats while a boolean condition is true. A do_while_loop runs once, then checks the condition. The repeated code is the loop_body. Each pass is an iteration. Use break to exit early. Use continue to skip to the next iteration. Watch for an infinite_loop when the condition never changes. Track counters or indexes with an increment or decrement.