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Buffer Data Type
Return the data type of an ndarray data buffer.
Installation
npm install @stdlib/ndarray-base-buffer-dtypeUsage
var dtype = require( '@stdlib/ndarray-base-buffer-dtype' );dtype( buffer )
Returns the data type of an ndarray data buffer.
var Float64Array = require( '@stdlib/array-float64' );
var buf = new Float64Array( 10 );
var dt = dtype( buf );
// returns 'float64'If provided an ndarray data buffer having an unknown or unsupported data type, the function returns null.
var dt = dtype( 'beep' );
// returns nullExamples
var dtypes = require( '@stdlib/ndarray-dtypes' );
var bufferCtors = require( '@stdlib/ndarray-base-buffer-ctors' );
var isFunction = require( '@stdlib/assert-is-function' );
var dtype = require( '@stdlib/ndarray-base-buffer-dtype' );
var DTYPES;
var ctor;
var buf;
var len;
var dt;
var i;
// Get a list of supported ndarray buffer data types:
DTYPES = dtypes();
// Buffer length:
len = 10;
// For each supported data type, create a buffer and confirm its data type...
for ( i = 0; i < DTYPES.length; i++ ) {
ctor = bufferCtors( DTYPES[ i ] );
if ( DTYPES[ i ] === 'binary' && isFunction( ctor.alloc ) ) {
buf = ctor.alloc( len );
} else {
buf = new ctor( len );
}
dt = dtype( buf );
console.log( '%s == %s => %s', DTYPES[ i ], dt, DTYPES[ i ] === dt );
}
// Try an array-like object...
buf = {
'length': 10
};
dt = dtype( buf );
console.log( '%s == %s => %s', 'generic', dt, dt === 'generic' );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.