Strange, I thought I had posted to the node.js mailing list. Thanks for
clearing up all of my stupid assumptions
Rick
On Monday, March 11, 2013, Андрей Листочкин wrote:
> Of source you can do that, but that would mean that this code can't be
> used in IE8 and below. Some people still care about those browsers :)
>
> On Mar 11, 2013, at 23:00 , Rick Waldron wrote:
>
> I haven't seen anything so far that couldn't be done with the object meta
> API...
>
> var fname = "John", lname = "Doe";
>
> Object.defineProperty(this, "full", {
> get: function() {
> return fname + " " + lname;
> }
> });
>
> full;
> // "John Doe"
>
>
> On Monday, March 11, 2013, Tristan Slominski wrote:
>
> Thanks Andrey, those are great pointers, I'll take a look.
>
> On Monday, March 11, 2013 2:08:09 PM UTC-5, Андрей Листочкин wrote:
>
> Another similar project:
> http://component.io/**weepy/attr<http://component.io/weepy/attr>
>
> It's a component, not the npm package but it's pretty easy to add it to
> your project since it's only one file.
>
> The API is similar to Knockout js http://knockoutjs.com/**documentation/**
> computedObservables.html<http://knockoutjs.com/documentation/computedObservables.html>
>
> var firstName = attr('John'), lastName = attr('Dow'), fullName =
> attr(function () {
> return firstName() + ' ' + lastName()
> })
>
> lastName('Resig')
>
> fullName() // === 'John Resig'
>
> It does the same thing as your package but does automatic dependency
> resolution and tracking. Take a look!
>
> BTW that's one of the reasons why I prefer something like Knockout or
> Angular to Ember.
>
> Andrey
>
> On Mar 11, 2013, at 02:22 , Tristan Slominski wrote:
>
> I saw a presentation, recently, on Ember.js computed properties. This got
> me curious about reactive programming.
>
> computed-value is a tiny library that allows developers to very simply
> specify dependencies between properties and recalculate them every time one
> of those dependent properties changes. This isn't a new idea, but I've
> attempted to make it as small and as powerful as possible. (And in the
> spirit of "stream all the things", I attempted to use the new "streams2"
> under the hood, so it requires node >= 0.9.12).
>
> If you're interested in reactive programming I would love some feedback on
> the API. It's still brand new, and experimental.
>
> Here's a computed full name example:
>
> var cv = require('computed-value');
>
> var first = cv('John');
> var last = cv('Smith');
> var full = cv(first, last, function(first, last) {
> return first + ' ' + last;
> });
>
> console.log(full.value);
>
> first.write('Bob');
> console.log(full.value);
>
> full.on('update', function(updatedValue) {
> console.log('update:', updatedValue);
> });
>
> last.write('Johnson');
>
> You can find the project here: https://github.com/**
> tristanls/node-computed-value<https://github.com/tristanls/node-computed-value>
>
> Cheers,
>
> Tristan
>
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