fs (File System)
The fs module enables you to interact with the file system.
It provides both synchronous and asynchronous methods for performing common file operations such as reading, writing, updating, deleting, and watching files and directories.
ESM
import fs from 'fs'
On this site, the fs module is a mock implementation that operates on files stored in your browser's memory.
Sync and asynchronous
The fs module supports three main styles of usage - synchronous, asynchronous, and Promise-based. Synchronous
usage is simpler, but blocks execution until the operation completes.
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Reading files
The function fs.readFileSync reads a file synchronously, meaning the Node.js process waits for the
operation to complete before doing anything else.
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