Asynchronously writes an ArrayBuffer to a file.

Example

var FileSystem = require("FuseJS/FileSystem");

var data = new ArrayBuffer(4);
var view = new Int32Array(data);
view[0] = 0x1337;

FileSystem.writeBufferToFile(FileSystem.dataDirectory + "/" + "myfile.txt", data)
    .then(function() {
        console.log("Successful write");
    }, function(error) {
        console.log(error);
    });