Test if a value is an Error object.
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> Test if a value is an [Error][mdn-error] object.
``bash`
npm install @stdlib/assert-is-error
`javascript`
var isError = require( '@stdlib/assert-is-error' );
#### isError( value )
Tests if a value is an [Error][mdn-error] object.
`javascript`
var bool = isError( new Error( 'beep' ) );
// returns true
`javascript
var isError = require( '@stdlib/assert-is-error' );
var bool = isError( new Error( 'error' ) );
// returns true
bool = isError( new EvalError( 'eval error' ) );
// returns true
bool = isError( new RangeError( 'range error' ) );
// returns true
bool = isError( new ReferenceError( 'reference error' ) );
// returns true
bool = isError( new SyntaxError( 'syntax error' ) );
// returns true
bool = isError( new TypeError( 'type error' ) );
// returns true
bool = isError( new URIError( 'URI error' ) );
// returns true
bool = isError( {} );
// returns false
bool = isError( null );
// returns false
`
*
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---
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[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules
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[mdn-error]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error