Objective-J - Programming language

Objective-J is an open source programming language created in 2008.

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16Years Old

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Objective-J is a programming language developed as part of the Cappuccino web development framework. Its syntax is nearly identical to the Objective-C syntax and it shares with JavaScript the same relationship that Objective-C has with the C programming language: that of being a strict, but small, superset; adding traditional inheritance and Smalltalk/Objective-C style dynamic dispatch. Pure JavaScript, being a prototype-based language, already has a notion of object orientation and inheritance, but Objective-J adds the use of class-based programming to JavaScript. Read more on Wikipedia...

Tags: programming language
There are at least 1,058 Objective-J repos on GitHub
Early development of Objective-J happened in https://github.com/cappuccino
The Google BigQuery Public Dataset GitHub snapshot shows 298 users using Objective-J in 340 repos on GitHub
Pygments supports syntax highlighting for Objective-J
GitHub supports syntax highlighting for Objective-J
cappuccino-project.org was registered in 2011
See also: (4 related languages) Objective-C, JavaScript, C, Smalltalk

Example from hello-world:

document.write("Hello World");

Example from Linguist:


@import <Foundation/CPObject.j>


@implementation AppController : CPObject
{
}

- (void)applicationDidFinishLaunching:(CPNotification)aNotification
{
    // The end result of this layout will be the kind of master/detail/auxilliary view
    // found in iTunes, Mail, and many other apps.

    var theWindow = [[CPWindow alloc] initWithContentRect:CGRectMakeZero() styleMask:CPBorderlessBridgeWindowMask],
        contentView = [theWindow contentView];

    var navigationArea = [[CPView alloc] initWithFrame:CGRectMake(0.0, 0.0, 150.0, CGRectGetHeight([contentView bounds]) - 150.0)];

    [navigationArea setBackgroundColor:[CPColor redColor]];

    // This view will grow in height, but stay fixed width attached to the left side of the screen.
    [navigationArea setAutoresizingMask:CPViewHeightSizable | CPViewMaxXMargin];

    [contentView addSubview:navigationArea];

    var metaDataArea = [[CPView alloc] initWithFrame:CGRectMake(0.0, CGRectGetMaxY([navigationArea frame]), 150.0, 150.0)];

    [metaDataArea setBackgroundColor:[CPColor greenColor]];

    // This view will stay the same size in both directions, and fixed to the lower left corner.
    [metaDataArea setAutoresizingMask:CPViewMinYMargin | CPViewMaxXMargin];

    [contentView addSubview:metaDataArea];

    var contentArea = [[CPView alloc] initWithFrame:CGRectMake(150.0, 0.0, CGRectGetWidth([contentView bounds]) - 150.0, CGRectGetHeight([contentView bounds]))];

    [contentArea setBackgroundColor:[CPColor blueColor]];

    // This view will grow in both height an width.
    [contentArea setAutoresizingMask:CPViewWidthSizable | CPViewHeightSizable];

    [contentView addSubview:contentArea];

    [theWindow orderFront:self];
}

@end

Example from Wikipedia:

@implementation Address : CPObject
{
  CPString name;
  CPString city;
}

- (id)initWithName:(CPString)aName city:(CPString)aCity
{
  self = [super init];

  name = aName;
  city = aCity;

  return self;
}

- (void)setName:(CPString)aName
{
  name = aName;
}

- (CPString)name
{
  return name;
}

+ (id)newAddressWithName:(CPString)aName city:(CPString)aCity
{
  return [[self alloc] initWithName:aName city:aCity];
}

@end

Language features

Feature	Supported	Example	Token
Strings	✓	"Hello world"	"
Print() Debugging	✓		document.write
Comments	✓	// A comment
Line Comments	✓	// A comment	//
Semantic Indentation	X