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Module

x/resulty/mod.ts>Err#isError

Provides simple, Rust-like Result and Option objects for Deno.
RobDWaller/resulty
Latest
method Err.prototype.isError
Re-export
import { Err } from "https://deno.land/x/resulty@0.4.0/mod.ts";

Returns

this is Err<T>