Iteration

Iteration?

• The act of repeating a process with the aim of approaching a desired goal, target or result.
• Each repetition of the process is also called an iteration, and the results of one iteration are used as the starting point for the next iteration.
• Iteration is used to repeat sections of code.

Why would we use it?

• Readability
• Reducing number of lines in code.
• More efficient || powerful.
• More manageable.
• Extensible with new features.

Count-Controlled?

• Will repeat a fixed number of times based on limit and increment.
• Good for arrays or when the number of repetitions is known in advance.

While loops?

• Repeat until condition is true.
• If the condition never fails it can run FOREVER.

Two variations?

• While do: Condition comes first (evaluates upfront).
• Do While: Condition comes last (will run once).