Errorify Classic

The complete version of Errorify. An extensive knowledge base to debug your JavaScript errors and warnings, from DOM to Network issues.

Installation

npm install errorify-classic

Usage

Errors

import { errorify } from 'errorify-classic';

fetch('/api/broken')
  .catch(err => {
    const result = errorify(err);
    console.log(result.explanation);
    console.log(result.solution);
  });

Warnings

import { warningify } from 'errorify-classic';

const warning = "Variable 'unused' is never used";
const result = warningify(warning);
console.log(result.explanation);
console.log(result.solution);

Auto Detection

Both errors and warnings are automatically detected and explained when logged:

// This will automatically show explanations
console.error(new Error("TypeError: Cannot read property 'x' of undefined"));
console.warn("Variable unused is never used");

Content

Includes everything in Lite, plus:

• fetch / Network / CORS errors.
• DOMException (querySelector, etc).
• Module errors (import/export).
• Promise errors (UnhandledRejection).
• Comprehensive warning database (unused variables, performance issues, missing null checks, etc).
• And much more!

Return Structure

Unlike Lite which returns a string, Classic returns an object:

Errors

{
  emoji: "❌",
  original: "TypeError: ...",
  fullError: "Full error message",
  explanation: "Clear explanation...",
  solution: "Possible solution..."
}

Warnings

{
  emoji: "⚠️",
  original: "Warning message",
  fullWarning: "Full warning description",
  explanation: "Clear explanation...",
  solution: "Possible solution..."
}