Kotlin
简介
Getting Started
Basics
Classes and Objects
Functions and Lambdas
Other
Reference
Java Interop
- Calling Java code from Kotlin
- Calling Kotlin from Java
JavaScript
- Kotlin JavaScript Overview
  - How can it be used
  - Getting Started with Kotlin to JavaScript
- Dynamic Type
- Calling JavaScript from Kotlin
  - Inline JavaScript
  - external modifier
    - Declaring (static) members of a class
    - Declaring optional parameters
    - Extending JavaScript classes
    - external interfaces
- Calling Kotlin from JavaScript
  - Isolating declarations in a separate JavaScript object
  - Package structure
    - @JsName annotation
  - Representing Kotlin types in JavaScript
  - JavaScript Modules
    - Choosing the Target Module System
      - From IntelliJ IDEA
      - From Maven
      - From Gradle
    - @JsModule annotation
      - Applying @JsModule to packages
      - Importing deeper package hierarchies
      - @JsNonModule annotation
      - Notes
  - JavaScript Reflection
- JavaScript Modules
- JavaScript Reflection
Tools
- Documenting Kotlin Code
- Using Gradle
- Using Maven
- Using Ant
  - Getting the Ant Tasks
  - Targeting JVM with Kotlin-only source
  - Targeting JVM with Kotlin-only source and multiple roots
  - Targeting JVM with Kotlin and Java source
  - Targeting JavaScript with single source folder
  - Targeting JavaScript with Pre..x, PostFix and sourcemap options
  - Targeting JavaScript with single source folder and metaInfo option
  - References
    - Attributes common for kotlinc and kotlin2js
    - kotlinc Attributes
    - kotlin2js Attributes
- Kotlin and OSGi
  - Maven
  - Gradle
  - FAQ
- Compiler Plugins
  - All-open compiler plugin
    - How to use all-open plugin
    - Kotlin-spring compiler plugin
  - No-arg compiler plugin
    - How to use no-arg plugin
    - Kotlin-jpa compiler plugin
FAQ
- FAQ
  - Common Questions
    - What is Kotlin?
    - Why a new language?
    - How is it licensed?
    - Where can I get an HD Kotlin logo?
    - Is it Java Compatible?
    - Which minimum Java version is required for running Kotlin code?
    - Is there tooling support?
    - Is there Eclipse support?
    - Is there a standalone compiler?
    - Is Kotlin a Functional Language?
    - Does Kotlin support generics?
    - Are semicolons required?
    - Why have type declarations on the right?
    - Will right-handed type declarations affect tooling?
    - Is Kotlin extensible?
    - Can I embed my DSL into the language?
    - What ECMAScript level does Kotlin for JavaScript support
    - Does the JavaScript back-end support module systems?
- Comparison to Java
  - Some Java issues addressed in Kotlin
  - What Java has that Kotlin does not
  - What Kotlin has that Java does not
- Comparison to Scala
  - What Scala has that Kotlin does not
  - What Kotlin has that Scala does not

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Function Usage

函数调用

调用函数与传统的方式一致。

val result = double(2)

调用成员函数使点与对象隔开。

Sample().foo()

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