time-to-botec

README.md (5756B)

---

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 @license Apache-2.0
 
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 Licensed under the Apache License, Version 2.0 (the "License");
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 See the License for the specific language governing permissions and
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 # Native Class
 
 > Determine the specification defined classification of an object.
 
 <section class="usage">
 
 ## Usage
 
 ```javascript
 var nativeClass = require( '@stdlib/utils/native-class' );
 ```
 
 #### nativeClass( value )
 
 Returns a `string` value indicating a [specification defined][object-to-string] classification of an `object`.
 
 ```javascript
 var str = nativeClass( 'a' );
 // returns '[object String]'
 
 str = nativeClass( 5 );
 // returns '[object Number]'
 
 function Beep() {
     return this;
 }
 str = nativeClass( new Beep() );
 // returns '[object Object]'
 ```
 
 </section>
 
 <!-- /.usage -->
 
 <section class="notes">
 
 ## Notes
 
 -   The function is **not** robust for ES2015+ environments. In ES2015+, [`Symbol.toStringTag`][mdn-symbol-tostringtag] allows overriding the default description of an object.
 
     ```javascript
     var toStr = Object.prototype.toString;
 
     var str = toStr.call( false );
     // returns '[object Boolean]'
 
     var o = {};
     str = toStr.call( o );
     // returns '[object Object]'
 
     // Mask the default description:
     o[ Symbol.toStringTag ] = 'Boolean';
 
     str = toStr.call( o );
     // returns '[object Boolean]'
     ```
 
     While measures are taken to uncover the default description, such measures can be thwarted. While this function remains useful for type-checking, be aware that value impersonation is possible. Prefer functions tailored to checking for particular value types, as specialized functions are better equipped to address [`Symbol.toStringTag`][mdn-symbol-tostringtag].
 
 </section>
 
 <!-- /.notes -->
 
 <section class="examples">
 
 ## Examples
 
 <!-- eslint-disable no-restricted-syntax, no-empty-function -->
 
 <!-- eslint no-undef: "error" -->
 
 ```javascript
 var Float32Array = require( '@stdlib/array/float32' );
 var Float64Array = require( '@stdlib/array/float64' );
 var Int8Array = require( '@stdlib/array/int8' );
 var Int16Array = require( '@stdlib/array/int16' );
 var Int32Array = require( '@stdlib/array/int32' );
 var Uint8Array = require( '@stdlib/array/uint8' );
 var Uint8ClampedArray = require( '@stdlib/array/uint8c' );
 var Uint16Array = require( '@stdlib/array/uint16' );
 var Uint32Array = require( '@stdlib/array/uint32' );
 var ArrayBuffer = require( '@stdlib/array/buffer' );
 var Symbol = require( '@stdlib/symbol/ctor' );
 var nativeClass = require( '@stdlib/utils/native-class' );
 
 var str = nativeClass( 'a' );
 // returns '[object String]'
 
 str = nativeClass( 5 );
 // returns '[object Number]'
 
 str = nativeClass( NaN );
 // returns '[object Number]'
 
 str = nativeClass( null );
 // returns '[object Null]'
 
 str = nativeClass( void 0 );
 // returns '[object Undefined]'
 
 str = nativeClass( true );
 // returns '[object Boolean]'
 
 str = nativeClass( false );
 // returns '[object Boolean]'
 
 str = nativeClass( {} );
 // returns '[object Object]'
 
 str = nativeClass( [] );
 // returns '[object Array]'
 
 str = nativeClass( function noop() {} );
 // returns '[object Function]'
 
 str = nativeClass( /./ );
 // returns '[object RegExp]'
 
 str = nativeClass( new Date() );
 // returns '[object Date]'
 
 str = nativeClass( new Map() );
 // returns '[object Map]'
 
 str = nativeClass( new WeakMap() );
 // returns '[object WeakMap]'
 
 str = nativeClass( new Set() );
 // returns '[object Set]'
 
 str = nativeClass( new WeakSet() );
 // returns '[object WeakSet]'
 
 str = nativeClass( Symbol( 'beep' ) );
 // returns '[object Symbol]'
 
 str = nativeClass( new Error() );
 // returns '[object Error]'
 
 str = nativeClass( new TypeError() );
 // returns '[object Error]'
 
 str = nativeClass( new SyntaxError() );
 // returns '[object Error]'
 
 str = nativeClass( new URIError() );
 // returns '[object Error]'
 
 str = nativeClass( new RangeError() );
 // returns '[object Error]'
 
 str = nativeClass( new ReferenceError() );
 // returns '[object Error]'
 
 str = nativeClass( new EvalError() );
 // returns '[object Error]'
 
 str = nativeClass( new Int8Array() );
 // returns '[object Int8Array]'
 
 str = nativeClass( new Uint8Array() );
 // returns '[object Uint8Array]'
 
 str = nativeClass( new Uint8ClampedArray() );
 // returns '[object Uint8ClampedArray]'
 
 str = nativeClass( new Int16Array() );
 // returns '[object Int16Array]'
 
 str = nativeClass( new Uint16Array() );
 // returns '[object Uint16Array]'
 
 str = nativeClass( new Int32Array() );
 // returns '[object Int32Array]'
 
 str = nativeClass( new Uint32Array() );
 // returns '[object Uint32Array]'
 
 str = nativeClass( new Float32Array() );
 // returns '[object Float32Array]'
 
 str = nativeClass( new Float64Array() );
 // returns '[object Float64Array]'
 
 str = nativeClass( new ArrayBuffer() );
 // returns '[object ArrayBuffer]'
 
 str = nativeClass( Math );
 // returns '[object Math]'
 
 str = nativeClass( JSON );
 // returns '[object JSON]'
 
 function Person() {
     return this;
 }
 str = nativeClass( new Person() );
 // returns '[object Object]'
 ```
 
 </section>
 
 <!-- /.examples -->
 
 <section class="links">
 
 [object-to-string]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/toString
 
 [mdn-symbol-tostringtag]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/toStringTag
 
 </section>
 
 <!-- /.links -->