Counters / Search.

Sixth class. With a loop (you already know for...of) we count and search.

Counter: start at 0, increase on a match. Search: found = false; on the first match set true and break.

Mini example:

const text = "food"; let countO = 0; for (const ch of text) { if (ch === "o") countO = countO + 1; } let found = false; for (const ch of text) { if (ch === "d") { found = true; break; } } console.log(countO); console.log(found);

Common mistake: relying on a built-in count helper instead of a loop; or forgetting break after a find.