tldr/pages/windows/test-json.md

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# Test-Json
> Tests whether a string is a valid JSON document.
> This command can only be used through PowerShell.
> More information: <https://learn.microsoft.com/powershell/module/microsoft.powershell.utility/test-json>.
- Test if a string from stdin is in JSON format:
`'{{string}}' | Test-Json`
- Test if a string JSON format:
`Test-Json -Json '{{json_to_test}}'`
- Test if a string from stdin matches a specific schema file:
`'{{string}}' | Test-Json -SchemaFile {{path\to\schema_file.json}}`