Zillow Coding Assignment

Question

• Try to avoid using third party modules
• Stick to node.js core APIs
• Write a test to confirm your module works correctly

Create a duplex stream that outputs summary objects with keys for the elapsed time, total length in bytes, and total lines. Create a stream that takes the summary objects and outputs a oneline summary report suitable for logging. The report should include the throughput rate of the input stream in bytes/sec. Use your new streams in a script designed to take text input (such as from a log file) and report on the number of lines and growth rate of the file. Bonus points if your script is configurable in some way via argv (use your imagination). Imagine a usage like this:

$ tail -f mylogfile | myscript verbose

Solution

Command to start the program

$ node index.js <FileName>

Please try the following examples.

$ node index.js test.txt

$ node index.js testImage.jpg