for...of Iterate iterables
Last updated: 2026-09-09
for...of Iterate iterables
for...of iterates over iterable objects (arrays, strings, Map, Set). Not for plain objects.
| Category | Statements |
|---|---|
| ES version | ES2015 |
📝 Syntax
for (const item of iterable) { ... }Returns：undefined.
Mutates the original：No (returns a new value)
▶ Example
Edit the code, press Run, and see the result in the output panel:
Output：
apple
banana
h
i
0 apple
1 banana💡 Tip for...of supports break/continue/return — more flexible than forEach.
ℹ️ info for...of cannot iterate plain objects — use Object.entries or for...in.
🌐 Browser support
| Browser |  Chrome |
 Edge |
 Firefox |
 Safari |
 Opera |
|---|---|---|---|---|---|
| for...of | ✓ v1 | ✓ v12 | ✓ v1 | ✓ v1 | ✓ v1 |
| Supported by all modern browsers | |||||
🏷️ Related Items
💡 Related Cases
More case studies coming soon — check back later.
📚 Related Tutorials
❓ FAQ
Qfor...of vs forEach?
Afor...of supports break/continue/await; forEach does not.
QCan for...of iterate objects?
ANo — plain objects are not iterable. Use Object.entries.
Qfor...of vs for...in?
Afor...of iterates values; for...in iterates keys.
