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@chartjes
Created January 31, 2012 15:34
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Hands On Node File System Exercise #3
var fs = require('fs');
function readBytes(filePosition, length) {
var readFile = function(err, fd) {
if (err) {
console.log(err.message);
return;
}
var readBuffer = new Buffer(length);
var bufferOffset = 0;
var bufferLength = readBuffer.length;
fs.read(fd, readBuffer, bufferOffset, bufferLength, filePosition, function(err, readBytes) {
if (err) {
throw err;
}
if (readBytes > 0) {
console.log(readBuffer.slice(0, readBytes).toString());
}
});
};
return readFile;
}
fs.open('./a.txt', 'r', readBytes(5, 5));
fs.open('./a.txt', 'r', readBytes(10, 5));
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