igorw's comments

On: Stack Machines: Notation Polish Reverse calculator

[igorw]

Hi, author here. Shunting-yard is actually what the next post in the series will be about. ;-)

[jheriko → igorw]

cool stuff :)

[igorw → jheriko]

FYI, here's the follow-up post. https://igor.io/2013/12/03/stack-machines-shunting-yard.html

[jheriko → igorw]

good work :)

On: Flynn - Open Source PaaS powered by Docker

[igorw]

Without knowing too much about docker, service discovery over dns-sd and potentially mdns (aka bonjour/zeroconf) generally works quite well in a contained private network. And I would love to see a platform that supports it.

On: Javascript SetInterval With Context

[igorw]

The reason why `this` is set to the window is because of the way the `this` keyword is bound in JavaScript. It is bound at call time.

If at call time it is being called on an object, it will have the value of that object. Otherwise it will have the value of window.

    var obj = { f: function () { return this; } };
    
    // returns the object
    obj.f()

    // returns window
    var f = obj.f;
    f();

What is happening here is that the setTimeout() calls the lambda at some later point, and it's no longer in the context of the object.

An alternate fix for the issue would be:

    var obj = (function () {
        var that = {};

        that.doSomethingLater = function () {
            setTimeout(function () { console.log(that); }, 1000);
        };

        return that;
    })();

    obj.doSomethingLater();

An article on the subject (that also talks about call and apply): http://www.robertsosinski.com/2009/04/28/binding-scope-in-ja...

On: The Yet Another Framework (Yaf), PHP extension for...

[igorw]

You've never tried to integrate two PHP projects, eh? As in: Whoops, you guys also have a class named "user"?

On: Poking a sleeping giant

[igorw]

API?

On: Can PostgreSQL pickup where MySQL left off?

[igorw]

Actually, phpBB 2.0.0 which was released in 2002 supported: IBM DB2, MS Access, MS SQL, MySQL3, MySQL4, Oracle... and Postgres 7.

But you are right, many of the other popular projects did not make this effort.

On: CSS "text-overflow: ellipsis;" finally landed in G...

[igorw]

Next up: "text-align: centaur" (http://textaligncentaur.com).

On: "Move" — a simpler programming language as a subse...

[igorw]

> In JavaScript, there are two different ways to define a function: using the function expression and the function declaration statement, the latter having subtle restrictions. Move only has function expressions.

Except using named functions will also make your stack traces useful. Because function names tell you more than line numbers.