Conjuring JQuery Deferred with monadic incantations

Question

Inspired by this (excellent) discussion of using Promises in javascript, I\'m trying to work out how I could use Deferred to chain together async and non-async functions, to

Answer 1

Wrapping a value into a promise is as simple as using $.when:

var promise = $.when( value );

Also, as of jQuery 1.6, you have a very simple chaining method (pipe):

var chained = functionThatReturnsAPromise().pipe(function( resolveValue ) {
        return functionThatReturnsAnotherPromise( resolveValue );
    });

chained.done(function() {
    // Both asynchronous operations done in sequence
});

Hope this helps.