# Symbol

A primitive whose values are always unique and can be used as object property keys.

## What is **Symbol** in JavaScript?

**Symbol** — A primitive whose values are always unique and can be used as object property keys.

```javascript
const orderId = Symbol("orderId");
```

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

Updated: September 27, 2026

Source: https://www.ask-codey.com/glossary/symbol