# for...in Loop

A loop that visits an object's enumerable property names.

## What is **for...in Loop** in JavaScript?

**for...in Loop** — A loop that visits an object's enumerable property names.

```javascript
for (const key in order) {
    keys.push(key);
}
```

Level: Apprentice · [More JavaScript terms at this level](https://www.ask-codey.com/glossary/subjects/javascript/apprentice)

Updated: September 27, 2026

Source: https://www.ask-codey.com/glossary/for-in-loop