Month: March 2017

We just released JS++ 0.5.1, which features the foreach keyword.

Basic usage is as follows:

external console;

int[] arr = [ 50, 40, 30 ];

foreach (int value in arr) {
    console.log(value);
}

// Output:
// 50
// 40
// 30

More complex usage, such as arrays of objects, are also possible:

external console;

class Foo
{
	string bar() {
		return "bar";
	}
}

Foo[] foo = [ new Foo(), new Foo(), new Foo() ];

foreach (Foo value in foo) {
    console.log(value.bar());
}

// Output:
// "bar"
// "bar"
// "bar"

Additionally, the for-in keyword has been implemented. It is a counterpart to the foreach keyword in the sense that it enumerates keys rather than values.

JS++ now supports the ‘class’ keyword. As promised, we would have classes available by Q1 2017. Notably, we are providing “basic” classes, so the following features are supported:

• ‘class’ keyword
• Inheritance
• Constructors (including private/protected constructors that limit instantiation/inheritance)
• Static Constructors
• Instantiation
• Fields
• Methods
• ‘this’ keyword
• ‘super’ keyword
• Method Overloading
• Constructor Overloading
• Getters and Setters (via ‘property’ keyword)
• Type system support
• Debugger support for classes (via source maps)

What did we consider to be outside the scope of basic classes? The following features are currently not available yet:

• Generic classes
• Abstract classes
• Inner classes
• Interfaces
• Virtual methods
• Custom Conversion Rules as defined in my book, “The JS++ Type System”, Chapter 6.2

As an example of what you can do with JS++ classes, we included an example with the Tiled Map Editor:

The included sample for Tiled can be found in the ‘Samples/Classes/tiled-loader’ directory with JS++ 0.5.0. Currently, it will load all maps exported to JSON with orthogonal tiles. It’s just a small but powerful example of what you can start doing with JS++ for early adopters.

I am also happy to inform that the backend for the JS++ website is written completely in JS++, and it has now run stable for one week without a single crash or error (other than 404 errors).

Finally, we have made the decision to not include the Mac/Linux installer… yet.

Be sure to check out the documentation on the ‘class’ keyword to get up to speed on JS++ classes.

Download JS++ 0.5.0 from our home page.