json.clone

Clones a value by encoding it with json.encode semantics and decoding the generated JSON back into Lua values.

Syntax

json.clone(value: any, options?: EncodeOptions): any

Arguments

Name	Type	Required	Description
`value`	`any`	Yes	Value to encode and decode. Supported JSON values round-trip with JSON; unsupported types encode as null unless encode options request an error.
`options`	`EncodeOptions`	No	Optional encode options passed to the encode step, such as sortKeys, emptyTableAsArray, errorOnUnsupported, encodeInvalidNumbersAsNull, maxDepth, pretty, and indent.

Returns

Name	Type	Description
`clone`	`any`	Decoded value produced from the encoded JSON. Objects and arrays are new tables with JSON kind markers from the decoder; JSON null values decode to json.null.

Types

EncodeOptions

Controls JSON serialization and formatting.

Name	Type	Required	Description
`pretty`	`boolean`	No	Enables formatted, multi-line JSON output.
`sortKeys`	`boolean`	No	Sorts object keys before encoding.
`emptyTableAsArray`	`boolean`	No	Encodes an empty table as an array instead of an object.
`errorOnUnsupported`	`boolean`	No	Raises an error instead of substituting unsupported values.
`encodeInvalidNumbersAsNull`	`boolean`	No	Encodes NaN and infinite numbers as JSON null.
`maxDepth`	`integer`	No	Sets the maximum nesting depth, clamped from 1 to 4096.
`indent`	`string`	No	Sets the indentation string, limited to 32 characters.

Example

Round-trip a JSON-compatible value through json.encode and json.decode before changing nested values.

local original = {
    profile = { name = "Guest" },
}

local copy = json.clone(original)
copy.profile.name = "Developer"

print(original.profile.name)
print(copy.profile.name)
print(json.type(copy))

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Syntax

Arguments

Returns

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EncodeOptions

Example

​Syntax

​Arguments

​Returns

​Types

​EncodeOptions

​Example

Syntax

Arguments

Returns

Types

EncodeOptions

Example