Control Flow & Loops

A while loop can iterate infinitely, a do...while cannot
A do...while always executes at least once, a while loop might not execute at all
The key difference is that a do...while loop always executes its code block at least once before checking the condition, whereas a while loop checks the condition first and might not execute at all if the condition is initially false. This makes do...while useful when you need to ensure the code executes at least once, regardless of the condition. In terms of functionality, both loops can iterate indefinitely if the condition never becomes false, and both can iterate over any kind of data—they're not limited to specific data structures.
A while loop can only iterate over arrays, a do...while can iterate over any data
A do...while is more efficient for large datasets