Guided Notes
Loops
for, while, and do...while loops, break and continue, and for...of / for...in.
Why loops?
Slide 1 / 5Loops repeat code — for each item in a list, a fixed number of times, or until something happens.
Without a loop: text += cars[0]; text += cars[1]; text += cars[2];
With a loop, the same code handles 3 items or 3 million:
for (let i = 0; i < cars.length; i++) { text += cars[i]; }