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How to use the closeSync function from fs

Find comprehensive JavaScript fs.closeSync code examples handpicked from public code repositorys.

fs.closeSync is a synchronous method in Node.js that closes an open file descriptor.

update_cards.js

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  stringifyStream.on('data', (strChunk) => {
    fs.writeSync(fd, strChunk);
  });

  stringifyStream.on('end', () => {
    fs.closeSync(fd);
    resolve();
  });
} catch (err) {
  reject(err);

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fs.js

GitHub: blockcollider/bcnode

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exports.chmod = co.promisify(fs.chmod);
exports.chmodSync = fs.chmodSync;
exports.chown = co.promisify(fs.chown);
exports.chownSync = fs.chownSync;
exports.close = co.promisify(fs.close);
exports.closeSync = fs.closeSync;
exports.constants = fs.constants;
exports.createReadStream = fs.createReadStream;
exports.createWriteStream = fs.createWriteStream;
exports.exists = async (file) => {

How does fs.closeSync work?

fs.closeSync() is a synchronous function in Node.js that closes the specified file descriptor, freeing up any system resources associated with the file. If an error occurs during the closing process, an exception is thrown.

%E6%8E%A2%E7%B4%A2RxJS-CoreConcept.md?plain=1

GitHub: ecmadao/Coding-Guide

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function () { },
// onError
function (err) {
  console.log('An error occurred while encrypting the file: %s', err.message);
  fs.closeSync(inFile);
  fs.closeSync(outFile);
},
// onCompleted
function () {
  console.log('Successfully encrypted the file.');

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+ 7 other calls in file

test-fs-chmod.js

GitHub: alibaba/AliOS-nodejs

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fs._open = fs.open;
fs._openSync = fs.openSync;
fs.open = open;
fs.openSync = openSync;
fs._close = fs.close;
fs._closeSync = fs.closeSync;
fs.close = close;
fs.closeSync = closeSync;


let openCount = 0;

Ai Example

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const fs = require("fs");

const fd = fs.openSync("example.txt", "r");
console.log("File opened successfully!");

fs.closeSync(fd);
console.log("File closed successfully!");

In this example, fs.openSync is used to open a file 'example.txt' in read-only mode and returns a file descriptor fd. The fd is then passed to fs.closeSync to close the file. The message 'File opened successfully!' and 'File closed successfully!' are printed to the console to indicate the operations were successful.

test-fs-error-messages.js

GitHub: nwjs/node

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  common.runWithInvalidFD((fd) => {
    fs.close(fd, common.mustCall(validateError));


    assert.throws(
      () => fs.closeSync(fd),
      validateError
    );
  });
}

unpack.js

GitHub: zeeoneofficial/node_modules

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const mode = entry.mode & 0o7777 || this.fmode

const oner = er => {
  let closeError
  try {
    fs.closeSync(fd)
  } catch (e) {
    closeError = e
  }
  if (er || closeError)

index.js

GitHub: kyriosli/node-zip

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        for (var red = 0; red < length;) {
            red += fs.readSync(file, buf, red, length - red, offset + red);
        }
        return buf;
    }, false)._closeHook(function () {
        fs.closeSync(file);
    });
} else if (Buffer.isBuffer(file)) {
    return zipFile(file.length, function (offset, length) {
        return file.slice(offset, offset + length)

main.js

GitHub: ghostpariah/thunder-canyon

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    }
}


async function checkForWhiteboard() {
    const wb = await fsp.stat(white_board).catch((e) => {
        fs.closeSync(fs.openSync(white_board, "w"));
    });
    //console.log(wb)
}
async function checkForPathToRootStorage(path) {

+ 4 other calls in file

index.js

GitHub: Monuwarhussen/CSE---3200-project

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    this.emit('done')
  }


  close () {
    if (typeof this.fd === 'number' && this.closeAfter)
      try { fs.closeSync(this.fd) } catch (er) {}
  }
}

+ 2 other calls in file

tmp.js

GitHub: ds-sampaio/ClicouChegouApp

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 */
function _prepareTmpFileRemoveCallback(name, fd, opts) {
  const removeCallback = _prepareRemoveCallback(function _removeCallback(fdPath) {
    try {
      if (0 <= fdPath[0]) {
        fs.closeSync(fdPath[0]);
      }
    }
    catch (e) {
      // under some node/windows related circumstances, a temporary file

+ 3 other calls in file

api.js

GitHub: SeanSun6814/NodeBB-Career-Branch

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// Create a new chat room
await messaging.newRoom(1, [2]);

// Create an empty file to test DELETE /files and thumb deletion
fs.closeSync(fs.openSync(path.resolve(nconf.get('upload_path'), 'files/test.txt'), 'w'));
fs.closeSync(fs.openSync(path.resolve(nconf.get('upload_path'), 'files/test.png'), 'w'));

// Associate thumb with topic to test thumb reordering
await topics.thumbs.associate({
    id: 2,

+ 3 other calls in file

test-fs-opendir.js

GitHub: vladimir-andreevich/node.js-14-windows-7

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// Make sure tmp directory is clean
tmpdir.refresh();


// Create the necessary files
files.forEach(function(filename) {
  fs.closeSync(fs.openSync(path.join(testDir, filename), 'w'));
});


function assertDirent(dirent) {
  assert(dirent instanceof fs.Dirent);

test-fs-stat-bigint.js

GitHub: vladimir-andreevich/node.js-14-windows-7

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}


{
  const filename = getFilename();
  const fd = fs.openSync(filename, 'r');
  runCallbackTest(fs.fstat, fd, () => { fs.closeSync(fd); });
}


const runPromiseTest = async (func, arg) => {
  const startTime = process.hrtime.bigint();

test-worker-track-unmanaged-fds.js

GitHub: vladimir-andreevich/node.js-14-windows-7

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{
  const w = new Worker(`${preamble}
  parentPort.postMessage(fs.openSync(__filename));
  parentPort.once('message', () => {
    const reopened = fs.openSync(__filename);
    fs.closeSync(reopened);
  });
  `, { eval: true, trackUnmanagedFds: true });
  const [ fd ] = await once(w, 'message');
  fs.closeSync(fd);

+ 3 other calls in file

test-fs-truncate.js

GitHub: vladimir-andreevich/node.js-14-windows-7

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{
  const file2 = path.resolve(tmp, 'truncate-file-2.txt');
  fs.writeFileSync(file2, 'Hi');
  const fd = fs.openSync(file2, 'r+');
  process.on('beforeExit', () => fs.closeSync(fd));
  fs.ftruncateSync(fd, 4);
  assert(fs.readFileSync(file2).equals(Buffer.from('Hi\u0000\u0000')));
}

+ 11 other calls in file

dm.js

GitHub: casualspacestation14enjoyer/SevenStation

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// Get project basename
const dmeBaseName = dmeFile.replace(/\.dme$/, '');
// Make sure output files are writable
const testOutputFile = (name) => {
  try {
    fs.closeSync(fs.openSync(name, 'r+'));
  }
  catch (err) {
    if (err && err.code === 'ENOENT') {
      return;

http2.md?plain=1

GitHub: DiegoRBaquero/node

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    'last-modified': stat.mtime.toUTCString(),
    'content-type': 'text/plain'
  };
  stream.respondWithFD(fd, headers);
});
server.on('close', () => fs.closeSync(fd));
```

The optional `options.statCheck` function may be specified to give user code
an opportunity to set additional content headers based on the `fs.Stat` details

+ 11 other calls in file

http2.md?plain=1

GitHub: eps1lon/node

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    'content-length': stat.size,
    'last-modified': stat.mtime.toUTCString(),
    'content-type': 'text/plain'
  };
  stream.respondWithFD(fd, headers);
  stream.on('close', () => fs.closeSync(fd));
});
```

The optional `options.statCheck` function may be specified to give user code

+ 3 other calls in file

Other functions in fs

Sorted by popularity

fs.readFileSync is the most popular function in fs (2736 examples)

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