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import ceylon.interop.browser { ... }

void run() {
    print(window.document);
}

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//$webrun_wrapped
shared void run() {

{Anything*} flatten({Anything*} stream)
    =>  stream.flatMap((element)
        =>  switch (element)
            case (is {Anything*}) flatten(element)
            else [element]);

{Character|String*} input = { 'a', "abc" };

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com.redhat.ceylon.compiler.typechecker.exceptions.LanguageModuleNotFoundException: cannot find module source artifact ceylon.language-1.1.1(.car|.jar|.src)
	- dependency tree: left/1.0.0 -> bottom/1.0.0 -> ceylon.language/1.1.1
	get ceylon.language and run 'ant publish' (more information at http://ceylon-lang.org/code/source/#ceylonlanguage_module)
	at com.redhat.ceylon.compiler.typechecker.analyzer.ModuleHelper.buildErrorOnMissingArtifact(ModuleHelper.java:50)
	at com.redhat.ceylon.compiler.typechecker.analyzer.ModuleValidator.verifyModuleDependencyTree(ModuleValidator.java:240)
	at com.redhat.ceylon.compiler.typechecker.analyzer.ModuleValidator.verifyModuleDependencyTree(ModuleValidator.java:267)
	at com.redhat.ceylon.compiler.typechecker.analyzer.ModuleValidator.access$400(ModuleValidator.java:39)
	at com.redhat.ceylon.compiler.typechecker.analyzer.ModuleValidator$2.run(ModuleValidator.java:112)
	at com.redhat.ceylon.model.typechecker.context.TypeCache.doWithExplicitCaching(TypeCache.java:48)
	at com.redha

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  [mvn:mvn] [main] INFO org.apache.maven.cli.event.ExecutionEventLogger - ------------------------------------------------------------------------
  [mvn:mvn] [main] INFO org.apache.maven.cli.event.ExecutionEventLogger - Reactor Summary:
  [mvn:mvn] [main] INFO org.apache.maven.cli.event.ExecutionEventLogger - 
  [mvn:mvn] [main] INFO org.apache.maven.cli.event.ExecutionEventLogger - Ceylon IDE ......................................... SUCCESS [  0.207 s]
  [mvn:mvn] [main] INFO org.apache.maven.cli.event.ExecutionEventLogger - ceylon.plugins ..................................... SUCCESS [  0.005 s]
  [mvn:mvn] [main] INFO org.apache.maven.cli.event.ExecutionEventLogger - com.redhat.ceylon.eclipse.ui.jdt.debug.fragment .... SUCCESS [  1.206 s]
  [mvn:mvn] [main] INFO org.apache.maven.cli.event.ExecutionEventLogger - com.redhat.ceylon.eclipse.ui ....................... SUCCESS [ 53.344 s]
  [mvn:mvn] [main] INFO org.apache.maven.cli.event.ExecutionEventLogger - Ceylon Test Plugin ..............................

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eclipse-quick:

build:
  [mvn:mvn] [main] INFO org.apache.maven.cli.event.ExecutionEventLogger - Scanning for projects...
  [mvn:mvn] [main] INFO org.eclipse.tycho.core.resolver.DefaultTychoResolver - Computing target platform for MavenProject: com.redhat.ceylon.eclipse:com.redhat.ceylon.eclipse.ui.jdt.debug.fragment:1.2.1-SNAPSHOT @ /home/ceylon/ceylon/ceylon-ide-eclipse/plugins/com.redhat.ceylon.eclipse.ui.jdt.debug.fragment/pom.xml
  [mvn:mvn] [main] INFO org.eclipse.tycho.osgi.configuration.MavenContextConfigurator - Adding repository file:../ceylon/dist/osgi/build/dist
  [mvn:mvn] [main] INFO org.eclipse.tycho.osgi.configuration.MavenContextConfigurator - Adding repository file:../ceylon-sdk/osgi/dist
  [mvn:mvn] [main] ERROR org.apache.maven.cli.MavenCli - Internal error: java.lang.RuntimeException: Failed to load p2 repository with ID 'ceylon-sdk' from location file:../ceylon-sdk/osgi/dist: URI is not hierarchical -> [Help 1]
  [mvn:mvn] org.apache.maven.InternalErrorException: Internal error: java.lan

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org.osgi.framework.BundleException: Could not resolve module: com.redhat.ceylon.test.eclipse.plugin [1311]
  Unresolved requirement: Require-Bundle: com.redhat.ceylon.eclipse.ui; bundle-version="1.2.0"
    -> Bundle-SymbolicName: com.redhat.ceylon.eclipse.ui; bundle-version="1.2.0.v20151022-1606-Final"; singleton:="true"
       com.redhat.ceylon.eclipse.ui [1306]
         Unresolved requirement: Require-Bundle: ceylon.bootstrap; bundle-version="1.2.0"
           -> Bundle-SymbolicName: ceylon.bootstrap; bundle-version="1.2.0.v20151022-1601"
              ceylon.bootstrap [1292]
                Unresolved requirement: Require-Bundle: ceylon.runtime; bundle-version="1.2.0"
                  -> Bundle-SymbolicName: ceylon.runtime; bundle-version="1.2.0.v20151022-1602"
                     ceylon.runtime [1298]

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Welcome to the Ceylon Web IDE

On this page you can easily try out simple (and not so simple) code examples written in Ceylon.

To start off you can click on any of the examples listed in the side bar on the right followed by pressing the Run button in the toolbar displayed right above this text.

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{
  "sets": [
    {
      "title": "Chapters",
      "items": [
        {
          "title": "Chapter 1: Classes",
          "set": "709e69f4c5f41600cb7b"
        },
        {

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{
  "sets": [
    {
      "title": "Chapters",
      "items": [
        {
          "title": "Chapter 1: Classes",
          "set": "709e69f4c5f41600cb7b"
        },
        {

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{
  "sets": [
    {
      "title": "Chapters",
      "items": [
        {
          "title": "Chapter 1: Classes",
          "set": "709e69f4c5f41600cb7b"
        },
        {