Questions tagged [appendfile]

It is most often used when someone wants to append content to file programmatically, such as using Javascript function fs.appendFile( path, data[, options], callback ), one can be able to asynchronously append the given data to a file. A new file is created if it does not exist. The options parameter can be used to modify the behavior of the operation.

e.g. Example in Node.JS

// Node.js program to demonstrate the 
// fs.appendFile() method 
  
// Import the filesystem module 
const fs = require('fs'); 
  
// Get the file contents before the append operation 
console.log("\nFile Contents of file before append:", 
  fs.readFileSync("example_file.txt", "utf8")); 
  
fs.appendFile("example_file.txt", "World", (err) => { 
  if (err) { 
    console.log(err); 
  } 
  else { 
    // Get the file contents after the append operation 
    console.log("\nFile Contents of file after append:", 
      fs.readFileSync("example_file.txt", "utf8")); 
  } 
});