Errlop NPM | npm.io

errlop

An extended Error class that envelops a parent error, such that the stack trace contains the causation

Usage

// const Errlop = require('errlop').default
import Errlop from 'errlop'
const a = new Errlop('AError')
const b = new Errlop('BError', a)
const c = Errlop.create('CError', b)
console.log(c.stack)
/*
Error: CError
    at Function.create (/Users/balupton/Projects/active/errlop/source/index.js:92:10)
    at Object.<anonymous> (/Users/balupton/Projects/active/errlop/example.js:6:18)
    at Module._compile (internal/modules/cjs/loader.js:689:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
    at Module.load (internal/modules/cjs/loader.js:599:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
    at Function.Module._load (internal/modules/cjs/loader.js:530:3)
    at Function.Module.runMain (internal/modules/cjs/loader.js:742:12)
    at startup (internal/bootstrap/node.js:266:19)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:596:3)
↳ Error: BError
    at Object.<anonymous> (/Users/balupton/Projects/active/errlop/example.js:5:11)
    at Module._compile (internal/modules/cjs/loader.js:689:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
    at Module.load (internal/modules/cjs/loader.js:599:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
    at Function.Module._load (internal/modules/cjs/loader.js:530:3)
    at Function.Module.runMain (internal/modules/cjs/loader.js:742:12)
    at startup (internal/bootstrap/node.js:266:19)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:596:3)
↳ Error: AError
    at Object.<anonymous> (/Users/balupton/Projects/active/errlop/example.js:4:11)
    at Module._compile (internal/modules/cjs/loader.js:689:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
    at Module.load (internal/modules/cjs/loader.js:599:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
    at Function.Module._load (internal/modules/cjs/loader.js:530:3)
    at Function.Module.runMain (internal/modules/cjs/loader.js:742:12)
    at startup (internal/bootstrap/node.js:266:19)
*/
console.log(c.orphanStack)
/*
Error: CError
    at Function.create (/Users/balupton/Projects/active/errlop/source/index.js:92:10)
    at Object.<anonymous> (/Users/balupton/Projects/active/errlop/example.js:6:18)
    at Module._compile (internal/modules/cjs/loader.js:689:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:700:10)
    at Module.load (internal/modules/cjs/loader.js:599:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:538:12)
    at Function.Module._load (internal/modules/cjs/loader.js:530:3)
    at Function.Module.runMain (internal/modules/cjs/loader.js:742:12)
    at startup (internal/bootstrap/node.js:266:19)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:596:3)
*/

Install

npm

Install: npm install --save errlop
Import: import pkg from ('errlop')
Require: const pkg = require('errlop').default

Deno

import pkg from 'https://unpkg.com/errlop@^8.4.0/edition-deno/index.ts'

Skypack

<script type="module">
    import pkg from '//cdn.skypack.dev/errlop@^8.4.0'
</script>

unpkg

<script type="module">
    import pkg from '//unpkg.com/errlop@^8.4.0'
</script>

jspm

<script type="module">
    import pkg from '//dev.jspm.io/errlop@8.4.0'
</script>

Editions

This package is published with the following editions:

errlop aliases errlop/index.cjs which uses the Editions Autoloader to automatically select the correct edition for the consumer's environment
errlop/source/index.ts is TypeScript source code with Import for modules
errlop/edition-browsers/index.js is TypeScript compiled against ES2022 for web browsers with Import for modules
errlop/edition-es2022/index.js is TypeScript compiled against ES2022 for Node.js 14 || 16 || 18 || 20 || 21 with Require for modules
errlop/edition-es2017/index.js is TypeScript compiled against ES2017 for Node.js 6 || 8 || 10 || 12 || 14 || 16 || 18 || 20 || 21 with Require for modules
errlop/edition-es5/index.js is TypeScript compiled against ES5 for Node.js 4 || 6 || 8 || 10 || 12 || 14 || 16 || 18 || 20 || 21 with Require for modules
errlop/edition-es2017-esm/index.js is TypeScript compiled against ES2017 for Node.js 12 || 14 || 16 || 18 || 20 || 21 with Import for modules
errlop/edition-types/index.d.ts is TypeScript compiled Types with Import for modules
errlop/edition-deno/index.ts is TypeScript source code made to be compatible with Deno