# dtypes2enums
> Resolve a list of [data type][@stdlib/ndarray/dtypes] enumeration constants.
## Usage
```javascript
var dtypes2enums = require( '@stdlib/ndarray/base/dtypes2enums' );
```
#### dtypes2enums( dtypes )
Resolves a list of [data type][@stdlib/ndarray/dtypes] enumeration constants.
```javascript
var out = dtypes2enums( [ 'float32', 'float64' ] );
// returns [...]
```
The function accepts the following arguments:
- **dtypes**: an array of [data types][@stdlib/ndarray/dtypes].
If the function is unable to resolve an enumeration constant for a provided [data type][@stdlib/ndarray/dtypes], the corresponding element in the returned array will be `null`.
```javascript
var out = dtypes2enums( [ 'foo', 'bar' ] );
// returns [ null, null ]
```
## Examples
```javascript
var dtypes = require( '@stdlib/ndarray/dtypes' );
var logEach = require( '@stdlib/console/log-each' );
var dtypes2enums = require( '@stdlib/ndarray/base/dtypes2enums' );
// Get the list of supported data types:
var dt = dtypes();
// Resolve enumeration constants:
var enums = dtypes2enums( dt );
// Print the results:
logEach( '%s => %d', dt, enums );
```
[@stdlib/ndarray/dtypes]: https://github.com/stdlib-js/ndarray/tree/main/dtypes