# Reviver
> Revive a JSON-serialized typed array.
## Usage
```javascript
var reviver = require( '@stdlib/array/reviver' );
```
#### reviver( key, value )
Revives a JSON-serialized typed array.
```javascript
var parseJSON = require( '@stdlib/utils/parse-json' );
var str = '{"type":"Float64Array","data":[5,3]}';
var arr = parseJSON( str, reviver );
// returns [ 5.0, 3.0 ]
```
For details on the JSON serialization format, see [`toJSON()`][@stdlib/array/to-json].
## Examples
```javascript
var Float64Array = require( '@stdlib/array/float64' );
var parseJSON = require( '@stdlib/utils/parse-json' );
var toJSON = require( '@stdlib/array/to-json' );
var reviver = require( '@stdlib/array/reviver' );
var arr = new Float64Array( [ 5.0, 3.0 ] );
var str = JSON.stringify( toJSON( arr ) );
console.log( str );
// => '{"type":"Float64Array","data":[5,3]}'
var out = parseJSON( str, reviver );
if ( out instanceof Error ) {
throw out;
}
console.log( out );
// => [ 5.0, 3.0 ]
```
[@stdlib/array/to-json]: https://www.npmjs.com/package/@stdlib/array/tree/main/to-json