isTypeError
Test if a value is a TypeError object.
Usage
var isTypeError = require( '@stdlib/assert/is-type-error' );
isTypeError( value )
Tests if a value
is a TypeError
object.
var bool = isTypeError( new TypeError( 'beep' ) );
// returns true
Notes
- This function should not be considered robust. While the function should always return
true
if provided aTypeError
(or a descendant) object, false positives may occur due to the fact that theTypeError
constructor inherits fromError
and has no internal class of its own. Hence,TypeError
impersonation is possible.
Examples
var isTypeError = require( '@stdlib/assert/is-type-error' );
var bool = isTypeError( new TypeError( 'type error' ) );
// returns true
bool = isTypeError( new Error( 'error' ) );
// returns false
bool = isTypeError( new EvalError( 'eval error' ) );
// returns false
bool = isTypeError( new ReferenceError( 'reference error' ) );
// returns false
bool = isTypeError( new SyntaxError( 'syntax error' ) );
// returns false
bool = isTypeError( new RangeError( 'range error' ) );
// returns false
bool = isTypeError( new URIError( 'URI error' ) );
// returns false
bool = isTypeError( {} );
// returns false
bool = isTypeError( null );
// returns false