IsValidJSON

Since 1.4.0

Check if string is valid JSON.

Signature

type IsValidJSON<S extends string> = S extends `{}` ? true : S extends `[]` ? true : ...

Parameters

Parameter	Description
S	String to validate

Description

Validates if a string represents valid JSON format.

Examples

Basic Usage

import type { IsValidJSON } from 'uni-types'

type Valid1 = IsValidJSON<'"hello"'>
// true

type Valid2 = IsValidJSON<'123'>
// true

type Valid3 = IsValidJSON<'{}'>
// true

type Valid4 = IsValidJSON<'[]'>
// true

type Invalid = IsValidJSON<'invalid'>
// false

Related

• ParseJSON - Parse JSON string to type