Return the alignment (in bytes) for an underlying array data type.
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> Return the alignment (in bytes) for an underlying [array data type][@stdlib/ndarray/dtypes].
``bash`
npm install @stdlib/ndarray-base-dtype-alignment
`javascript`
var dtypeAlignment = require( '@stdlib/ndarray-base-dtype-alignment' );
#### dtypeAlignment( \[dtype] )
Returns the alignment (in bytes) for an underlying [array data type][@stdlib/ndarray/dtypes].
`javascript
var out = dtypeAlignment( 'float64' );
// returns 8
out = dtypeAlignment( 'generic' );
// returns null
`
If provided an unknown or unsupported data type, the function returns null.
`javascript`
var out = dtypeAlignment( 'foobar' );
// returns null
If not provided a [data type][@stdlib/ndarray/dtypes] value, the function returns an object mapping [data type][@stdlib/ndarray/dtypes] strings to alignments (in bytes).
`javascript`
var obj = dtypeAlignment();
// returns {...}
`javascript
var logEachMap = require( '@stdlib/console-log-each-map' );
var dtypeAlignment = require( '@stdlib/ndarray-base-dtype-alignment' );
var dtypes = [
'float64',
'float32',
'int8',
'uint8',
'uint8c',
'int16',
'uint16',
'int32',
'uint32',
'binary',
'generic',
'foobar'
];
logEachMap( '%s => %s', dtypes, dtypeAlignment );
`
*
This package is part of [stdlib][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][stdlib], see the main project [repository][stdlib].
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---
See [LICENSE][stdlib-license].
Copyright © 2016-2026. The Stdlib [Authors][stdlib-authors].
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