Node.js, MongoDB, and AngularJS Web Development

Synchronous File Writing

The synchronous method of file writing involves writing data to a file before returning execution to the running thread. This provides the advantage of allowing you to write multiple times in the same section of code, but it can be a disadvantage if the file writes hold up other threads, as discussed earlier.

To write to a file synchronously, first open it using openSync() to get a file descriptor and then use fs.writeSync() to write data to the file. The following is the syntax for fs.writeSync():

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fs.writeSync(fd, data, offset, length, position)

The fd parameter is the file descriptor that openSync() returns. The data parameter specifies the String or Buffer object that will be written to ...