Returns true if value is an Error instance (or a subclass like TypeError).
true
value
Error
TypeError
The value to check.
isError(new Error("oops")) // => trueisError({ message: "oops" }) // => false Copy
isError(new Error("oops")) // => trueisError({ message: "oops" }) // => false
Returns
trueifvalueis anErrorinstance (or a subclass likeTypeError).