Monday, April 02, 2012

PL101, JavaScript interactive tutorial: What's a Closure?

What's a Closure?

Excellent series of interactive lessons to learn some of JavaScript concepts.

The author, Nathan Whitehead, offers a complete online class "nathansuniversity"
"PL101: Create your own programming language"

I guess it may end up making CoffeeScript or similar...

The site looks professional and interesting,
but there is no much of background info about the author/instructor...
He says to have PhD in CS, and works for Nvidia...

So it is not Stanford or MIT, or a famous person...
just useful and free content...
A brave new world of online education!

  • JavaScript review
  • Tour of Languages
  • Music in JavaScript
  • SQL Server 2012 Express "Local" Database

    SQL Server 2012 Express Edition introduces a new deployment option called Local Database Runtime. LocalDb is a small shared component (not a service) that installs in five minutes or less that is ideal for applications or tools that need an embedded database that is API compatible with SQL Server.

    Presentation: Introducing SQL Server 2012 Express Local Database Runtime | Channel 9:

    Elements of Modern C++ Style - Herb Sutter

    Herb Sutter is one of main C++ people in Microsoft, and in C++ standardization.
    He wrote a brief document describing new features of C++11 language
    (that used to be called C++0x). The language is now available in VS11 Beta,
    and can be used for developing Windows 8 (and other) apps...

    Elements of Modern C++ Style « Sutter’s Mill

    “C++11 feels like a new language.” – Bjarne Stroustrup"

    The C++11 standard offers many useful new features. This page focuses specifically and only on those features that make C++11 really feel like a new language compared to C++98

    Here’s one quick example: Find the first element in v that’s >x and <y. In C+11, the simplest and cleanest code is to use a standard algorithm.
    // C++98: write a naked loop (using std::find_if is impractically difficult)
    vector::iterator i = v.begin(); // because we need to use i later
    for( ; i != v.end(); ++i ) {
        if( *i > x && *i < y ) break;
    // C++11: use std::find_if
    auto i = find_if( begin(v), end(v), [=](int i) { return i > x && i < y; } );

    The key (and not new) observation in the interview, is that .NET is good for developers productivity,
    and C++ is good for getting efficient programs.
    What is new is that modernized C++ could also make developers productive,
    like C# and similar languages...
    It may be time to learn (another) new language: C++11.

    C++ @ MSDN