node js save content to file

// writefile.js const fs = require('fs'); let lyrics = 'But still I\'m having memories of high speeds when the cops crashed\n' + 'As I laugh, pushin the gas while my Glocks blast\n' + 'We was young and we was dumb but we had heart'; // write to a new file named 2pac.txt fs.writeFile('2pac.txt', lyrics, (err) => { // throws an error, you could also catch it here if (err) throw err; // success case, the file was saved console.log('Lyric saved!'); });

writefile in node js

// fs_write.js

const fs = require('fs');

// specify the path to the file, and create a buffer with characters we want to write
let path = 'ghetto_gospel.txt';
let buffer = new Buffer('Those who wish to follow me\nI welcome with my hands\nAnd the red sun sinks at last');

// open the file in writing mode, adding a callback function where we do the actual writing
fs.open(path, 'w', function(err, fd) {
    if (err) {
        throw 'could not open file: ' + err;
    }

    // write the contents of the buffer, from position 0 to the end, to the file descriptor returned in opening our file
    fs.write(fd, buffer, 0, buffer.length, null, function(err) {
        if (err) throw 'error writing file: ' + err;
        fs.close(fd, function() {
            console.log('wrote the file successfully');
        });
    });
});

Posted by: Guest on March-15-2020

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