WH

Nth Line

In Nodejs, when reading a stream from a file, the process of getting the nth line requires reading (nth - 1) lines. A filestream's data comes as it is ready and in order, but there is no means of jumping to a specific nth line of the stream.

Robust Typeof

Using typeof in JavaScript does not produce the results that one would expect as explain by many articles found on the internet.

Script Loading Safety

The jQuery Boilerplate is a popular boilerplate and provides a safety net for double instantiation of a jQuery object with this code

Creating Multiple Files

Unfortunately, the fs.writeFile does not accept an array for creating a bunch of files at once. To solve this problem, put all files in an array and loop through them to create the files.

Instances Methods and Their Personal State

This post is for intended for JavaScript (not Java).

One may put instance method variables within an instance method to provide encapsulation, but what do you do when you want to maintain a private state for each instance method on each instance method execution?

Publish and Subscribe

One way of emitting events is by using trigger on a jQuery element.

Streaming Consistency

Since Node's streaming Api is still changing and is in 'unstable' category, writing a npm module using streams may cause some unexpected behaviors on older versions of Node. To ensure that streams are compatible with older versions of Node, a drop-in replacement for stream is available called 'readable-stream'.