typedarray2json

Return a JSON representation of a typed array.

Installation

npm install @stdlib/array-to-json

Usage

var typedarray2json = require( '@stdlib/array-to-json' );

typedarray2json( typedarray )

Returns a JSON representation of a typed array.

var Float64Array = require( '@stdlib/array-float64' );

var arr = new Float64Array( [ 5.0, 3.0 ] );

var json = typedarray2json( arr );
/* returns
    {
        'type': 'Float64Array',
        'data': [ 5.0, 3.0 ]
    }
*/

For guidance on reviving a JSON-serialized typed array, see reviver().

Notes

• Supported typed array types:

  • Float64Array
  • Float32Array
  • Complex128Array
  • Complex64Array
  • BooleanArray
  • Int32Array
  • Uint32Array
  • Int16Array
  • Uint16Array
  • Int8Array
  • Uint8Array
  • Uint8ClampedArray

• The implementation provides basic support for custom typed arrays and sets the type field to the closest known typed array type.

  class CustomArray extends Float64Array() {
      constructor( data ) {
          super( data );
      }
  }
  
  var arr = new CustomArray( [ 5.0, 3.0 ] );
  
  var json = typedarray2json( arr );
  /* returns
      {
          'type': 'Float64Array',
          'data': [ 5.0, 3.0 ]
      }
  */

Examples

var Float64Array = require( '@stdlib/array-float64' );
var Float32Array = require( '@stdlib/array-float32' );
var Int32Array = require( '@stdlib/array-int32' );
var Uint32Array = require( '@stdlib/array-uint32' );
var Int16Array = require( '@stdlib/array-int16' );
var Uint16Array = require( '@stdlib/array-uint16' );
var Int8Array = require( '@stdlib/array-int8' );
var Uint8Array = require( '@stdlib/array-uint8' );
var Uint8ClampedArray = require( '@stdlib/array-uint8c' );
var Complex64Array = require( '@stdlib/array-complex64' );
var Complex128Array = require( '@stdlib/array-complex128' );
var BooleanArray = require( '@stdlib/array-bool' );
var typedarray2json = require( '@stdlib/array-to-json' );

var arr = new Float64Array( [ 5.0, 3.0 ] );
var json = typedarray2json( arr );
/* returns
    {
        'type': 'Float64Array',
        'data': [ 5.0, 3.0 ]
    }
*/

arr = new Float32Array( [ 5.0, -3.0 ] );
json = typedarray2json( arr );
/* returns
    {
        'type': 'Float32Array',
        'data': [ 5.0, -3.0 ]
    }
*/

arr = new Complex128Array( [ 5.0, 3.0 ] );
json = typedarray2json( arr );
/* returns
    {
        'type': 'Complex128Array',
        'data': [ 5.0, 3.0 ]
    }
*/

arr = new Complex64Array( [ 5.0, 3.0 ] );
json = typedarray2json( arr );
/* returns
    {
        'type': 'Complex64Array',
        'data': [ 5.0, 3.0 ]
    }
*/

arr = new BooleanArray( [ true, false ] );
json = typedarray2json( arr );
/* returns
    {
        'type': 'BooleanArray',
        'data': [ 1, 0 ]
    }
*/

arr = new Int32Array( [ -5, 3 ] );
json = typedarray2json( arr );
/* returns
    {
        'type': 'Int32Array',
        'data': [ -5, 3 ]
    }
*/

arr = new Uint32Array( [ 5, 3 ] );
json = typedarray2json( arr );
/* returns
    {
        'type': 'Uint32Array',
        'data': [ 5, 3 ]
    }
*/

arr = new Int16Array( [ -5, 3 ] );
json = typedarray2json( arr );
/* returns
    {
        'type': 'Int16Array',
        'data': [ -5, 3 ]
    }
*/

arr = new Uint16Array( [ 5, 3 ] );
json = typedarray2json( arr );
/* returns
    {
        'type': 'Uint16Array',
        'data': [ 5, 3 ]
    }
*/

arr = new Int8Array( [ -5, 3 ] );
json = typedarray2json( arr );
/* returns
    {
        'type': 'Int8Array',
        'data': [ -5, 3 ]
    }
*/

arr = new Uint8Array( [ 5, 3 ] );
json = typedarray2json( arr );
/* returns
    {
        'type': 'Uint8Array',
        'data': [ 5, 3 ]
    }
*/

arr = new Uint8ClampedArray( [ 5, 3 ] );
json = typedarray2json( arr );
/* returns
    {
        'type': 'Uint8ClampedArray',
        'data': [ 5, 3 ]
    }
*/

See Also

• @stdlib/array-reviver: revive a JSON-serialized typed array.

Notice

This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.

Community

License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.