129 lines
2.9 KiB
Markdown
129 lines
2.9 KiB
Markdown
<!--
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@license Apache-2.0
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Copyright (c) 2018 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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# isSymbolArray
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> Test if a value is an array-like object containing only [symbols][mdn-symbol].
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<section class="usage">
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## Usage
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```javascript
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var isSymbolArray = require( '@stdlib/assert/is-symbol-array' );
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```
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#### isSymbolArray( value )
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Tests if a `value` is an array-like object containing only [symbols][mdn-symbol].
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```javascript
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var Symbol = require( '@stdlib/symbol/ctor' );
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var bool = isSymbolArray( [ Symbol( 'beep' ), Symbol( 'boop' ) ] );
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// returns true
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bool = isSymbolArray( [ 'beep', 'boop' ] );
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// returns false
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```
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#### isSymbolArray.primitives( value )
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Tests if a `value` is an array-like object containing only [`symbol`][mdn-symbol] primitives.
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```javascript
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var Symbol = require( '@stdlib/symbol/ctor' );
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var bool = isSymbolArray.primitives( [ Symbol( 'beep' ), Symbol( 'boop' ) ] );
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// returns true
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bool = isSymbolArray.primitives( [ Symbol( 'beep' ), Object( Symbol( 'boop' ) ) ] );
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// returns false
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```
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#### isSymbolArray.objects( value )
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Tests if a `value` is an array-like object containing only [`Symbol`][mdn-symbol] objects.
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```javascript
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var Symbol = require( '@stdlib/symbol/ctor' );
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var bool = isSymbolArray.objects( [ Object( Symbol( 'beep' ) ), Object( Symbol( 'boop' ) ) ] );
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// returns true
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bool = isSymbolArray.objects( [ Symbol( 'beep' ), Symbol( 'boop' ) ] );
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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 hasSymbolSupport = require( '@stdlib/assert/has-symbol-support' );
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var Symbol = require( '@stdlib/symbol/ctor' );
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var isSymbolArray = require( '@stdlib/assert/is-symbol-array' );
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var hasSymbols = hasSymbolSupport();
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var bool;
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if ( hasSymbols ) {
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bool = isSymbolArray( [ Symbol( 'beep' ), Symbol( 'boop' ) ] );
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// returns true
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bool = isSymbolArray( [ Symbol( 'beep' ), 'boop' ] );
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// returns false
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bool = isSymbolArray( Symbol( 'beep' ) );
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// returns false
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} else {
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console.log( 'Environment does not support symbols.' );
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}
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bool = isSymbolArray( [ 'beep', 'boop' ] );
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// returns false
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bool = isSymbolArray( [] );
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// returns false
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bool = isSymbolArray( 'abc' );
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// returns false
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bool = isSymbolArray( 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-symbol]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol
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</section>
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<!-- /.links -->
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