Packages/err/Is

Node: http-errorsgithub.com/sahilkhaire/gox/err

Is

Overview

Is reports whether err matches target in the error chain.

Part of the err package — Node.js analog: http-errors.

Signature

func Is(err, target error) bool

Compare: Node.js · Standard Go · gox

Node.js

// Typical http-errors pattern in Node.js

Standard Go

errors.Is(err, target)
errors.As(err, &target)
fmt.Errorf("context: %w", err)

gox

import "github.com/sahilkhaire/gox/err"

if err.Is(err, target) { /* ... */ }

Example

import "github.com/sahilkhaire/gox/err"

if err.Is(err, target) { /* ... */ }

Tips

Import github.com/sahilkhaire/gox/err and call Is directly. See the comparison below for the standard library equivalent.

Standard library alternative

Use the standard library directly:

errors.Is(err, target)
errors.As(err, &target)
fmt.Errorf("context: %w", err)

Related APIs

As

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