When writing to files in C, new programmers sometimes encounter the annoying problem that their text appears as Chinese characters rather than legible output. Incorrect file handling, including not closing a file before reopening it or using the incorrect encoding, is usually the cause of this. Another common mistake is not properly checking if the file was successfully opened, which can lead to corrupted or unexpected data. Understanding how fopen, fclose, and file modes work is crucial for avoiding these errors. By applying best practices, developers can ensure their file operations run smoothly.

This page discusses many ways to save files using Node.js and JavaScript. It fixes frequent problems like the "require is not defined" error that occurs when a browser tries to use server-side modules like fs.