JavaScript Main Process Error Handler Code Snippets

When dealing with why JavaScript error occurred in the main process, having reliable error handling utilities is crucial. These code snippets provide ready-to-use solutions for detecting, handling, and recovering from main process errors in JavaScript applications.

Global Error Handler Utility #

This comprehensive error handler catches all uncaught exceptions and provides detailed error reporting:

Function Wrapper for Safe Execution #

This utility wraps functions to prevent main process crashes:

Error Boundary for Async Operations #

Handle asynchronous operations that might cause main process errors:

Memory-Safe Error Logger #

A lightweight error logger that prevents memory leaks in long-running applications:

Usage Examples #

Basic Implementation #

// Quick setup for main process error handling
const errorHandler = new MainProcessErrorHandler();
const safeWrap = createSafeWrapper();
const errorLogger = new MemorySafeErrorLogger();

// Wrap critical functions
const safeCriticalFunction = safeWrap(criticalFunction, 'criticalFunction');

// Use with async operations
const asyncBoundary = new AsyncErrorBoundary();
asyncBoundary.execute('operation-1', asyncOperation);

Custom Error Recovery #

// Custom error handler with recovery logic
const customErrorHandler = new MainProcessErrorHandler({
    logToConsole: true,
    preventCrash: true
});

window.addEventListener('mainProcessError', (event) => {
    const { type, message } = event.detail;
    
    // Implement custom recovery logic
    if (type === 'UnhandledException') {
        // Attempt to recover from uncaught exceptions
        console.log('Attempting error recovery...');
    }
});