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Return a JSON representation of a typed array.
To use in Observable,
typedarray2json = require( 'https://cdn.jsdelivr.net/gh/stdlib-js/array-to-json@umd/browser.js' )To vendor stdlib functionality and avoid installing dependency trees for Node.js, you can use the UMD server build:
var typedarray2json = require( 'path/to/vendor/umd/array-to-json/index.js' )To include the bundle in a webpage,
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/array-to-json@umd/browser.js"></script>If no recognized module system is present, access bundle contents via the global scope:
<script type="text/javascript">
(function () {
window.typedarray2json;
})();
</script>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().
-
Supported typed array types:
-
The implementation provides basic support for custom typed arrays and sets the
typefield 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 ] } */
<!DOCTYPE html>
<html lang="en">
<body>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/array-float64@umd/browser.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/array-float32@umd/browser.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/array-int32@umd/browser.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/array-uint32@umd/browser.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/array-int16@umd/browser.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/array-uint16@umd/browser.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/array-int8@umd/browser.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/array-uint8@umd/browser.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/array-uint8c@umd/browser.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/array-complex64@umd/browser.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/array-complex128@umd/browser.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/array-bool@umd/browser.js"></script>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/array-to-json@umd/browser.js"></script>
<script type="text/javascript">
(function () {
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 ]
}
*/
})();
</script>
</body>
</html>@stdlib/array-reviver: revive a JSON-serialized typed array.
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.
See LICENSE.
Copyright © 2016-2025. The Stdlib Authors.
