@stdlib/assert/is-bigint/README.md

Standard assertion utilities.

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# isBigInt

> Test if a value is a [BigInt][mdn-bigint].

<section class="usage">

## Usage

```javascript
var isBigInt = require( '@stdlib/assert/is-bigint' );
```

#### isBigInt( value )

Tests if a value is a [`BigInt`][mdn-bigint].

```javascript
var Object = require( '@stdlib/object/ctor' );
var BigInt = require( '@stdlib/bigint/ctor' );

var bool = isBigInt( BigInt( '1' ) );
// returns true

bool = isBigInt( Object( BigInt( '1' ) ) );
// returns true
```

#### isBigInt.isPrimitive( value )

Tests if a `value` is a primitive [`BigInt`][mdn-bigint].

```javascript
var Object = require( '@stdlib/object/ctor' );
var BigInt = require( '@stdlib/bigint/ctor' );

var bool = isBigInt.isPrimitive( BigInt( '1' ) );
// returns true

bool = isBigInt.isPrimitive( Object( BigInt( '1' ) ) );
// returns false
```

#### isBigInt.isObject( value )

Tests if a `value` is a [`BigInt`][mdn-bigint] object.

```javascript
var Object = require( '@stdlib/object/ctor' );
var BigInt = require( '@stdlib/bigint/ctor' );

var bool = isBigInt.isObject( BigInt( '1' ) );
// returns false

bool = isBigInt.isObject( Object( BigInt( '1' ) ) );
// returns true
```

</section>

<!-- /.usage -->

<section class="examples">

## Examples

<!-- eslint-disable no-restricted-syntax, no-empty-function -->

<!-- eslint no-undef: "error" -->

```javascript
var hasBigIntSupport = require( '@stdlib/assert/has-bigint-support' );
var BigInt = require( '@stdlib/bigint/ctor' );
var isBigInt = require( '@stdlib/assert/is-bigint' );

var bool;
if ( hasBigIntSupport() ) {
    bool = isBigInt( BigInt( '1' ) );
    // returns true
} else {
    console.log( 'Environment does not support BigInts.' );
}
bool = isBigInt( 1 );
// returns false

bool = isBigInt( '1' );
// returns false

bool = isBigInt( {} );
// returns false

bool = isBigInt( [] );
// returns false

bool = isBigInt( null );
// returns false

bool = isBigInt( void 0 );
// returns false

bool = isBigInt( true );
// returns false

bool = isBigInt( function foo() {} );
// returns false
```

</section>

<!-- /.examples -->

<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->

<section class="related">

</section>

<!-- /.related -->

<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="links">

[mdn-bigint]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt

</section>

<!-- /.links -->