JavaScript Object Method Chaining: useful? [closed]

Answer 1

Fluent interface - http://en.wikipedia.org/wiki/Fluent_interface

Yea I think it could be very useful but like any design pattern should only be used when needed

Edit: here is twitter client api in c# using a fluent interface - http://code.google.com/p/tweetsharp/

Answer 2

For a very different (non-OO) example, chaining is somewhat analogous to Unix pipelines. Each step of a Unix pipe returns the full (modified) content, suitable for sending on to the next step:

cat file1 file2 | sort -n | awk '{print $2}' | sed 's/@/ at /g'

Answer 3

Well, here is a not very real-world applicable example, but I think you'll get the idea. If allows you to do a number of different operations on an object, and provides convenience.

var truck = function() {

    this.turnLeft = function {

       // turn left
       return this;

    }

    this.turnRight = function {

       // turn right
       return this;

    }

    this.goReallyFast = function {

       // go fast!
       return this;

    }

};

// My get-away plan
var myTruck = new truck();
myTruck.turnLeft().turnRight().goReallyFast();