# ndarraylike2descriptor
> Convert an ndarray-like object to an ndarray [descriptor][@stdlib/ndarray/base/descriptor].
## Usage
```javascript
var ndarraylike2descriptor = require( '@stdlib/ndarray/base/ndarraylike2descriptor' );
```
#### ndarraylike2descriptor( x )
Converts an ndarray-like object to an ndarray [descriptor][@stdlib/ndarray/base/descriptor].
```javascript
var zeros = require( '@stdlib/ndarray/zeros' );
var x = zeros( [ 2, 2 ] );
var out = ndarraylike2descriptor( x );
// returns {...}
```
The function accepts the following arguments:
- **x**: input ndarray.
## Notes
- This function is intended as a potential performance optimization. In V8, for example, even if two objects share common properties, if those properties were added in different orders or if one object has additional properties not shared by the other object, then those objects will have different "hidden" classes. If a function is provided many objects having different "shapes", some JavaScript VMs (e.g., V8) will consider the function "megamorphic" and fail to perform various runtime optimizations. Accordingly, the intent of this function is to create an object containing the minimal amount of meta data necessary to interpret an n-dimensional array and to ensure that internal functions operating on ndarrays are provided consistent argument "shapes".
## Examples
```javascript
var discreteUniform = require( '@stdlib/random/discrete-uniform' );
var ndarray2array = require( '@stdlib/ndarray/to-array' );
var ndarraylike2descriptor = require( '@stdlib/ndarray/base/ndarraylike2descriptor' );
var x = discreteUniform( [ 3, 3 ], 0, 10, {
'dtype': 'generic'
});
console.log( ndarray2array( x ) );
var obj = ndarraylike2descriptor( x );
console.log( obj );
```
[@stdlib/ndarray/base/descriptor]: https://github.com/stdlib-js/ndarray/tree/main/base/descriptor