@stdlib/array/shape/README.md

Arrays.

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# Array Shape

> Determine (nested) array dimensions.

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## Usage

```javascript
var arrayShape = require( '@stdlib/array/shape' );
```

#### arrayShape( arr )

Returns array dimensions.

```javascript
var arr = [
    [ 1, 2, 3 ],
    [ 4, 5, 6 ],
    [ 7, 8, 9 ]
];

var shape = arrayShape( arr );
// returns [ 3, 3 ]
```

The function **ignores** inconsistent dimensions.

```javascript
var arr = [
    [ 1, 2, 3 ],
    [ 4, 5, 6 ],
    [ 7, 8 ]
];

var shape = arrayShape( arr );
// returns [ 3 ]
```

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## Examples

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```javascript
var arrayShape = require( '@stdlib/array/shape' );

var arr = [ 1, 2, 3 ];
var shape = arrayShape( arr );
// returns [ 3 ]

arr = [
    [ 1 ],
    [ 2 ],
    [ 3 ]
];
shape = arrayShape( arr );
// returns [ 3, 1 ]

arr = [
    [],
    [],
    []
];
shape = arrayShape( arr );
// returns [ 3, 0 ]

arr = [
    [ 1, 2, 3 ]
];
shape = arrayShape( arr );
// returns [ 1, 3 ]

arr = [
    [ [ 1 ] ],
    [ [ 2 ] ],
    [ [ 3 ] ]
];
shape = arrayShape( arr );
// returns [ 3, 1, 1 ]

arr = [ [ [ [ 1, 2, 3 ] ] ] ];
shape = arrayShape( arr );
// returns [ 1, 1, 1, 3 ]

arr = [
    [ 1, 2 ],
    [ 3, 4 ]
];
shape = arrayShape( arr );
// returns [ 2, 2 ]

arr = [
    [ 1, 2, 3 ],
    [ 4, 5, 6 ],
    [ 7, 8, 9 ]
];
shape = arrayShape( arr );
// returns [ 3, 3 ]

arr = [
    [ 1, 2, 3 ],
    null,
    [ 7, 8, 9 ]
];
shape = arrayShape( arr );
// returns [ 3 ]

arr = [
    [ 1, 2, 3 ],
    [ [ 4, 5, 6 ] ],
    [ [ 7, 8, 9 ] ]
];
shape = arrayShape( arr );
// returns [ 3 ]

arr = [
    [ [ 1, 2, 3 ] ],
    [ 4, 5, 6 ],
    [ [ 7, 8, 9 ] ]
];
shape = arrayShape( arr );
// returns [ 3 ]

arr = [
    [ [ 1, 2, 3 ] ],
    [ [ 4, 5, 6 ] ],
    [ 7, 8, 9 ]
];
shape = arrayShape( arr );
// returns [ 3 ]

arr = [
    [ [ [ 1, 2, 3 ] ] ],
    [ [ 4, 5, 6 ] ],
    [ [ [ 7, 8, 9 ] ] ]
];
shape = arrayShape( arr );
// returns [ 3, 1 ]
```

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* * *

## See Also

-   <span class="package-name">[`@stdlib/ndarray/ctor`][@stdlib/ndarray/ctor]</span><span class="delimiter">: </span><span class="description">multidimensional array constructor.</span>

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[@stdlib/ndarray/ctor]: https://www.npmjs.com/package/@stdlib/ndarray-ctor

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