126 lines
2.8 KiB
Markdown
126 lines
2.8 KiB
Markdown
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<!--
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@license Apache-2.0
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Copyright (c) 2021 The Stdlib Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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# isDataView
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> Test if a value is a [DataView][mdn-dataview].
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<section class="usage">
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## Usage
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```javascript
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var isDataView = require( '@stdlib/assert/is-dataview' );
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```
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#### isDataView( value )
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Tests if a value is a [`DataView`][mdn-dataview].
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```javascript
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var ArrayBuffer = require( '@stdlib/array/buffer' );
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var DataView = require( '@stdlib/array/dataview' );
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var bool = isDataView( new DataView( new ArrayBuffer( 10 ) ) );
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// returns true
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bool = isDataView( [] );
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// returns false
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```
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</section>
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<!-- /.usage -->
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<section class="examples">
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## Examples
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<!-- eslint no-undef: "error" -->
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```javascript
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var Float32Array = require( '@stdlib/array/float32' );
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var Float64Array = require( '@stdlib/array/float64' );
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var Int8Array = require( '@stdlib/array/int8' );
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var Int16Array = require( '@stdlib/array/int16' );
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var Int32Array = require( '@stdlib/array/int32' );
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var Uint8Array = require( '@stdlib/array/uint8' );
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var Uint8ClampedArray = require( '@stdlib/array/uint8c' );
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var Uint16Array = require( '@stdlib/array/uint16' );
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var Uint32Array = require( '@stdlib/array/uint32' );
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var ArrayBuffer = require( '@stdlib/array/buffer' );
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var DataView = require( '@stdlib/array/dataview' );
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var isDataView = require( '@stdlib/assert/is-dataview' );
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var bool = isDataView( new DataView( new ArrayBuffer( 10 ) ) );
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// returns true
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bool = isDataView( new Float32Array( 10 ) );
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// returns false
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bool = isDataView( new Int8Array( 10 ) );
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// returns false
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bool = isDataView( new Uint8Array( 10 ) );
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// returns false
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bool = isDataView( new Uint8ClampedArray( 10 ) );
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// returns false
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bool = isDataView( new Int16Array( 10 ) );
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// returns false
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bool = isDataView( new Uint16Array( 10 ) );
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// returns false
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bool = isDataView( new Int32Array( 10 ) );
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// returns false
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bool = isDataView( new Uint32Array( 10 ) );
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// returns false
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bool = isDataView( new Float64Array( 10 ) );
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// returns false
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bool = isDataView( new Array( 10 ) );
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// returns false
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bool = isDataView( new ArrayBuffer( 10 ) );
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// returns false
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bool = isDataView( {} );
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// returns false
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bool = isDataView( null );
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// returns false
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```
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</section>
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<!-- /.examples -->
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<section class="links">
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[mdn-dataview]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/DataView
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</section>
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<!-- /.links -->
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