19 lines
338 B
Markdown
19 lines
338 B
Markdown
---
|
|
title: isSymbol
|
|
tags: type,beginner
|
|
firstSeen: 2017-12-17T17:55:51+02:00
|
|
lastUpdated: 2020-09-15T16:28:04+03:00
|
|
---
|
|
|
|
Checks if the given argument is a symbol.
|
|
|
|
- Use `typeof` to check if a value is classified as a symbol primitive.
|
|
|
|
```js
|
|
const isSymbol = val => typeof val === 'symbol';
|
|
```
|
|
|
|
```js
|
|
isSymbol(Symbol('x')); // true
|
|
```
|