# isBigInt64Array
> Test if a value is a [BigInt64Array][mdn-bigint64array].
## Usage
```javascript
var isBigInt64Array = require( '@stdlib/assert/is-bigint64array' );
```
#### isBigInt64Array( value )
Tests if a value is a [`BigInt64Array`][mdn-bigint64array].
```javascript
var bool = isBigInt64Array( new BigInt64Array( 10 ) );
// returns true
bool = isBigInt64Array( [] );
// returns false
```
## Examples
```javascript
var Int8Array = require( '@stdlib/array/int8' );
var Uint8Array = require( '@stdlib/array/uint8' );
var Uint8ClampedArray = require( '@stdlib/array/uint8c' );
var Int16Array = require( '@stdlib/array/int16' );
var Uint16Array = require( '@stdlib/array/uint16' );
var Int32Array = require( '@stdlib/array/int32' );
var Uint32Array = require( '@stdlib/array/uint32' );
var Float32Array = require( '@stdlib/array/float32' );
var Float64Array = require( '@stdlib/array/float64' );
var isBigInt64Array = require( '@stdlib/assert/is-bigint64array' );
var bool = isBigInt64Array( new BigInt64Array( 10 ) );
// returns true
bool = isBigInt64Array( new Int8Array( 10 ) );
// returns false
bool = isBigInt64Array( new Uint8Array( 10 ) );
// returns false
bool = isBigInt64Array( new Uint8ClampedArray( 10 ) );
// returns false
bool = isBigInt64Array( new Int16Array( 10 ) );
// returns false
bool = isBigInt64Array( new Uint16Array( 10 ) );
// returns false
bool = isBigInt64Array( new Int32Array( 10 ) );
// returns false
bool = isBigInt64Array( new Uint32Array( 10 ) );
// returns false
bool = isBigInt64Array( new Float64Array( 10 ) );
// returns false
bool = isBigInt64Array( new Float32Array( 10 ) );
// returns false
bool = isBigInt64Array( new Array( 10 ) );
// returns false
bool = isBigInt64Array( {} );
// returns false
bool = isBigInt64Array( null );
// returns false
```
[mdn-bigint64array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt64Array