npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

go-go-try

v5.0.0

Published

Tries to execute a sync/async function, returns a result tuple

Downloads

717

Readme

go-go-try

Tries to execute a sync/async function, returns a Golang style result.

Why

  • Supports sync/async functions.
  • Allows you to capture the thrown error.
  • Written in TypeScript. The types are written in a way that reduce developer errors.
  • Inspired by Golang error catching.
  • Zero dependencies.

Why not just try/catch?

  • In a lot of cases, try/catch is still the better option.
  • Nested try/catch statements are hard to process mentally. They also indent the code and make it hard to read. A single try/catch does the same but to a lesser degree.
  • If you prefer const, try/catch statements get in the way because you need to use let if you need the variable outside of the try/catch scope:
    let todos
    try {
        todos = JSON.parse(localStorage.getItem('todos'))
    } catch {}
    return todos.filter((todo) => todo.done)
  • It takes more space. It's slower to type.

Install

npm install go-go-try

Usage

import { goTry, goTryRaw, goTrySync, goTryRawSync } from 'go-go-try'

// tries to parse todos, returns empty array if it fails
const [_, value = []] = goTrySync(() => JSON.parse(todos))

// fetch todos, on error, fallback to empty array
const [_, todos = []] = await goTry(fetchTodos())

// fetch todos, fallback to empty array, send error to your error tracking service
const [err, todos = []] = await goTry(fetchTodos()) // err is string | undefined
sentToErrorTrackingService(err)

// goTry extracts the error message from the error object, if you want the raw error object, use goTryRaw/goTryRawSync
const [err, value] = goTryRawSync<Error>(() => JSON.parse('{/}')) // err will be unknown, value will be always T and you can add a Error type as the first generic argument to avoid checking `instanceof Error`

// fetch todos, fallback to empty array, send error to your error tracking service
const [err, todos = []] = await goTryRaw<SomeErrorType>(fetchTodos()) // err is SomeErrorType | undefined
sentToErrorTrackingService(err)

API

First parameter accepts:

  • asynchronous function / Promise

Returns a tuple with the possible error and result (Golang style)

Alternatively, you can use the goTrySync and goTryRawSync functions to get the result and error for sync functions.

If you use TypeScript, the types are well defined and won't let you make a mistake.

Inspiration

  • This library started as a fork of good-try but diverged a lot so I decided to rename it