scala · bishabosha · Jan 3, 2023 · Dec 29, 2022 · Jan 3, 2023 · Jan 3, 2023
diff --git a/_zh-cn/overviews/scala3-book/ca-context-bounds.md b/_zh-cn/overviews/scala3-book/ca-context-bounds.md
@@ -2,6 +2,7 @@
 title: 上下文绑定
 type: section
 description: This page demonstrates Context Bounds in Scala 3.
+languages:[en]
 num: 61
 previous-page: types-type-classes
 next-page: ca-given-imports

diff --git a/_zh-cn/overviews/scala3-book/ca-contextual-abstractions-intro.md b/_zh-cn/overviews/scala3-book/ca-contextual-abstractions-intro.md
@@ -2,6 +2,7 @@
 title: 上下文抽象
 type: chapter
 description: This chapter provides an introduction to the Scala 3 concept of Contextual Abstractions.
+languages:[en]
 num: 58
 previous-page: types-others
 next-page: ca-given-using-clauses

diff --git a/_zh-cn/overviews/scala3-book/ca-extension-methods.md b/_zh-cn/overviews/scala3-book/ca-extension-methods.md
@@ -2,6 +2,7 @@
 title: 扩展方法
 type: section
 description: This page demonstrates how Extension Methods work in Scala 3.
+languages:[en]
 num: 63
 previous-page: ca-given-imports
 next-page: ca-type-classes

diff --git a/_zh-cn/overviews/scala3-book/ca-given-imports.md b/_zh-cn/overviews/scala3-book/ca-given-imports.md
@@ -2,6 +2,7 @@
 title: Given 导入
 type: section
 description: This page demonstrates how 'given' import statements work in Scala 3.
+languages:[en]
 num: 62
 previous-page: ca-context-bounds
 next-page: ca-extension-methods

diff --git a/_zh-cn/overviews/scala3-book/ca-given-using-clauses.md b/_zh-cn/overviews/scala3-book/ca-given-using-clauses.md
@@ -2,6 +2,7 @@
 title: Given 实例和 Using 语句
 type: section
 description: This page demonstrates how to use 'given' instances and 'using' clauses in Scala 3.
+languages:[en]
 num: 59
 previous-page: ca-contextual-abstractions-intro
 next-page: types-type-classes

diff --git a/_zh-cn/overviews/scala3-book/ca-implicit-conversions.md b/_zh-cn/overviews/scala3-book/ca-implicit-conversions.md
@@ -2,6 +2,7 @@
 title: 隐式转换
 type: section
 description: This page demonstrates how to implement Implicit Conversions in Scala 3.
+languages:[en]
 num: 66
 previous-page: ca-multiversal-equality
 next-page: ca-summary

diff --git a/_zh-cn/overviews/scala3-book/ca-multiversal-equality.md b/_zh-cn/overviews/scala3-book/ca-multiversal-equality.md
@@ -2,6 +2,7 @@
 title: 多元相等性
 type: section
 description: This page demonstrates how to implement Multiversal Equality in Scala 3.
+languages:[en]
 num: 65
 previous-page: ca-type-classes
 next-page: ca-implicit-conversions

diff --git a/_zh-cn/overviews/scala3-book/ca-summary.md b/_zh-cn/overviews/scala3-book/ca-summary.md
@@ -2,6 +2,7 @@
 title: 总结
 type: section
 description: This page provides a summary of the Contextual Abstractions lessons.
+languages:[en]
 num: 67
 previous-page: ca-implicit-conversions
 next-page: concurrency

diff --git a/_zh-cn/overviews/scala3-book/ca-type-classes.md b/_zh-cn/overviews/scala3-book/ca-type-classes.md
@@ -2,6 +2,7 @@
 title: 实现类型类
 type: section
 description: This page demonstrates how to create and use type classes in Scala 3.
+languages:[en]
 num: 64
 previous-page: ca-extension-methods
 next-page: ca-multiversal-equality

diff --git a/_zh-cn/overviews/scala3-book/collections-classes.md b/_zh-cn/overviews/scala3-book/collections-classes.md
@@ -2,6 +2,7 @@
 title: 集合类型
 type: section
 description: This page introduces the common Scala 3 collections types and some of their methods.
+languages:[en]
 num: 37
 previous-page: collections-intro
 next-page: collections-methods
@@ -371,7 +372,9 @@ val people = ArrayBuffer(
 
 ```scala
 val nums = ArrayBuffer(1, 2, 3)   // ArrayBuffer(1, 2, 3)
+languages:[en]
 nums += 4                         // ArrayBuffer(1, 2, 3, 4)
+languages:[en]
 nums ++= List(5, 6)               // ArrayBuffer(1, 2, 3, 4, 5, 6)
 ```
 

diff --git a/_zh-cn/overviews/scala3-book/collections-intro.md b/_zh-cn/overviews/scala3-book/collections-intro.md
@@ -2,6 +2,7 @@
 title: Scala 集合
 type: chapter
 description: This page provides and introduction to the common collections classes and their methods in Scala 3.
+languages:[en]
 num: 36
 previous-page: packaging-imports
 next-page: collections-classes

diff --git a/_zh-cn/overviews/scala3-book/collections-methods.md b/_zh-cn/overviews/scala3-book/collections-methods.md
@@ -2,6 +2,7 @@
 title: 集合方法
 type: section
 description: This page demonstrates the common methods on the Scala 3 collections classes.
+languages:[en]
 num: 38
 previous-page: collections-classes
 next-page: collections-summary

diff --git a/_zh-cn/overviews/scala3-book/collections-summary.md b/_zh-cn/overviews/scala3-book/collections-summary.md
@@ -2,6 +2,7 @@
 title: 总结 
 type: section
 description: This page provides a summary of the Collections chapter.
+languages:[en]
 num: 39
 previous-page: collections-methods
 next-page: fp-intro

diff --git a/_zh-cn/overviews/scala3-book/concurrency.md b/_zh-cn/overviews/scala3-book/concurrency.md
@@ -2,6 +2,7 @@
 title: 并发
 type: chapter
 description: This page discusses how Scala concurrency works, with an emphasis on Scala Futures.
+languages:[en]
 num: 68
 previous-page: ca-summary
 next-page: scala-tools

diff --git a/_zh-cn/overviews/scala3-book/control-structures.md b/_zh-cn/overviews/scala3-book/control-structures.md
@@ -2,6 +2,7 @@
 title: 控制结构
 type: chapter
 description: This page provides an introduction to Scala's control structures, including if/then/else, 'for' loops, 'for' expressions, 'match' expressions, try/catch/finally, and 'while' loops.
+languages:[en, ru]
 num: 18
 previous-page: first-look-at-types
 next-page: domain-modeling-intro

diff --git a/_zh-cn/overviews/scala3-book/domain-modeling-fp.md b/_zh-cn/overviews/scala3-book/domain-modeling-fp.md
@@ -2,6 +2,7 @@
 title: 函数式领域建模
 type: section
 description: This chapter provides an introduction to FP domain modeling with Scala 3.
+languages:[en, ru]
 num: 22
 previous-page: domain-modeling-oop
 next-page: methods-intro

diff --git a/_zh-cn/overviews/scala3-book/domain-modeling-intro.md b/_zh-cn/overviews/scala3-book/domain-modeling-intro.md
@@ -2,6 +2,7 @@
 title: 领域建模
 type: chapter
 description: This chapter provides an introduction to domain modeling in Scala 3.
+languages:[en, ru]
 num: 19
 previous-page: control-structures
 next-page: domain-modeling-tools

diff --git a/_zh-cn/overviews/scala3-book/domain-modeling-oop.md b/_zh-cn/overviews/scala3-book/domain-modeling-oop.md
@@ -2,6 +2,7 @@
 title: OOP 领域建模
 type: section
 description: This chapter provides an introduction to OOP domain modeling with Scala 3.
+languages:[en, ru]
 num: 21
 previous-page: domain-modeling-tools
 next-page: domain-modeling-fp

diff --git a/_zh-cn/overviews/scala3-book/domain-modeling-tools.md b/_zh-cn/overviews/scala3-book/domain-modeling-tools.md
@@ -2,6 +2,7 @@
 title: 工具
 type: section
 description: This chapter provides an introduction to the available domain modeling tools in Scala 3, including classes, traits, enums, and more.
+languages:[en, ru]
 num: 20
 previous-page: domain-modeling-intro
 next-page: domain-modeling-oop

diff --git a/_zh-cn/overviews/scala3-book/first-look-at-types.md b/_zh-cn/overviews/scala3-book/first-look-at-types.md
@@ -2,6 +2,7 @@
 title: 类型初探
 type: chapter
 description: This page provides a brief introduction to Scala's built-in data types, including Int, Double, String, Long, Any, AnyRef, Nothing, and Null.
+languages:[en, ru]
 num: 17
 previous-page: taste-summary
 next-page: control-structures
@@ -13,7 +14,6 @@ permalink: "/zh-cn/scala3/book/:title.html"
 ---
 
 
-
 ## 所有值都有一个类型
 
 在 Scala 中，所有值都有一个类型，包括数值和函数。

diff --git a/_zh-cn/overviews/scala3-book/fp-functional-error-handling.md b/_zh-cn/overviews/scala3-book/fp-functional-error-handling.md
@@ -2,6 +2,7 @@
 title: 函数式错误处理
 type: section
 description: This section provides an introduction to functional error handling in Scala 3.
+languages:[en]
 num: 45
 previous-page: fp-functions-are-values
 next-page: fp-summary

diff --git a/_zh-cn/overviews/scala3-book/fp-functions-are-values.md b/_zh-cn/overviews/scala3-book/fp-functions-are-values.md
@@ -2,6 +2,7 @@
 title: 函数是值
 type: section
 description: This section looks at the use of functions as values in functional programming.
+languages:[en]
 num: 44
 previous-page: fp-pure-functions
 next-page: fp-functional-error-handling
@@ -91,12 +92,18 @@ fruits.map(_.toUpperCase)       // List(APPLE, PEAR)
 fruits.flatMap(_.toUpperCase)   // List(A, P, P, L, E, P, E, A, R)
 
 val nums = List(5, 1, 3, 11, 7)
+languages:[en]
 nums.map(_ * 2)         // List(10, 2, 6, 22, 14)
+languages:[en]
 nums.filter(_ > 3)      // List(5, 11, 7)
+languages:[en]
 nums.takeWhile(_ < 6)   // List(5, 1, 3)
+languages:[en]
 nums.sortWith(_ < _)    // List(1, 3, 5, 7, 11)
+languages:[en]
 nums.sortWith(_ > _)    // List(11, 7, 5, 3, 1)
 
+languages:[en]
 nums.takeWhile(_ < 6).sortWith(_ < _)   // List(1, 3, 5)
 ```
 

diff --git a/_zh-cn/overviews/scala3-book/fp-immutable-values.md b/_zh-cn/overviews/scala3-book/fp-immutable-values.md
@@ -2,6 +2,7 @@
 title: 不可变值
 type: section
 description: This section looks at the use of immutable values in functional programming.
+languages:[en]
 num: 42
 previous-page: fp-what-is-fp
 next-page: fp-pure-functions

diff --git a/_zh-cn/overviews/scala3-book/fp-intro.md b/_zh-cn/overviews/scala3-book/fp-intro.md
@@ -2,6 +2,7 @@
 title: 函数式编程
 type: chapter
 description: This chapter provides an introduction to functional programming in Scala 3.
+languages:[en]
 num: 40
 previous-page: collections-summary
 next-page: fp-what-is-fp

diff --git a/_zh-cn/overviews/scala3-book/fp-pure-functions.md b/_zh-cn/overviews/scala3-book/fp-pure-functions.md
@@ -2,6 +2,7 @@
 title: 纯函数
 type: section
 description: This section looks at the use of pure functions in functional programming.
+languages:[en]
 num: 43
 previous-page: fp-immutable-values
 next-page: fp-functions-are-values

diff --git a/_zh-cn/overviews/scala3-book/fp-summary.md b/_zh-cn/overviews/scala3-book/fp-summary.md
@@ -2,6 +2,7 @@
 title: 总结 
 type: section
 description: This section summarizes the previous functional programming sections.
+languages:[en]
 num: 46
 previous-page: fp-functional-error-handling
 next-page: types-introduction

diff --git a/_zh-cn/overviews/scala3-book/fp-what-is-fp.md b/_zh-cn/overviews/scala3-book/fp-what-is-fp.md
@@ -2,6 +2,7 @@
 title: 什么是函数式编程？
 type: section
 description: This section provides an answer to the question, what is functional programming?
+languages:[en]
 num: 41
 previous-page: fp-intro
 next-page: fp-immutable-values

diff --git a/_zh-cn/overviews/scala3-book/fun-anonymous-functions.md b/_zh-cn/overviews/scala3-book/fun-anonymous-functions.md
@@ -2,6 +2,7 @@
 title: 匿名函数
 type: section
 description: This page shows how to use anonymous functions in Scala, including examples with the List class 'map' and 'filter' functions.
+languages:[en, ru]
 num: 28
 previous-page: fun-intro
 next-page: fun-function-variables

diff --git a/_zh-cn/overviews/scala3-book/fun-eta-expansion.md b/_zh-cn/overviews/scala3-book/fun-eta-expansion.md
@@ -2,6 +2,7 @@
 title: Eta 扩展
 type: section
 description: This page discusses Eta Expansion, the Scala technology that automatically and transparently converts methods into functions.
+languages:[en, ru]
 num: 30
 previous-page: fun-function-variables
 next-page: fun-hofs

diff --git a/_zh-cn/overviews/scala3-book/fun-function-variables.md b/_zh-cn/overviews/scala3-book/fun-function-variables.md
@@ -2,6 +2,7 @@
 title: 函数变量
 type: section
 description: This page shows how to use anonymous functions in Scala, including examples with the List class 'map' and 'filter' functions.
+languages:[en, ru]
 num: 29
 previous-page: fun-anonymous-functions
 next-page: fun-eta-expansion

diff --git a/_zh-cn/overviews/scala3-book/fun-hofs.md b/_zh-cn/overviews/scala3-book/fun-hofs.md
@@ -2,6 +2,7 @@
 title: 高阶函数
 type: section
 description: This page demonstrates how to create and use higher-order functions in Scala.
+languages:[en, ru]
 num: 31
 previous-page: fun-eta-expansion
 next-page: fun-write-map-function

diff --git a/_zh-cn/overviews/scala3-book/fun-intro.md b/_zh-cn/overviews/scala3-book/fun-intro.md
@@ -2,6 +2,7 @@
 title: 函数
 type: chapter
 description: This chapter looks at all topics related to functions in Scala 3.
+languages:[en, ru]
 num: 27
 previous-page: methods-summary
 next-page: fun-anonymous-functions

diff --git a/_zh-cn/overviews/scala3-book/fun-summary.md b/_zh-cn/overviews/scala3-book/fun-summary.md
@@ -2,6 +2,7 @@
 title: 总结
 type: section
 description: This page shows how to use anonymous functions in Scala, including examples with the List class 'map' and 'filter' functions.
+languages:[en, ru]
 num: 34
 previous-page: fun-write-method-returns-function
 next-page: packaging-imports

diff --git a/_zh-cn/overviews/scala3-book/fun-write-map-function.md b/_zh-cn/overviews/scala3-book/fun-write-map-function.md
@@ -2,6 +2,7 @@
 title: 自定义 map 函数
 type: section
 description: This page demonstrates how to create and use higher-order functions in Scala.
+languages:[en, ru]
 num: 32
 previous-page: fun-hofs
 next-page: fun-write-method-returns-function

diff --git a/_zh-cn/overviews/scala3-book/fun-write-method-returns-function.md b/_zh-cn/overviews/scala3-book/fun-write-method-returns-function.md
@@ -2,6 +2,7 @@
 title: 创建可以返回函数的方法
 type: section
 description: This page demonstrates how to create and use higher-order functions in Scala.
+languages:[en, ru]
 num: 33
 previous-page: fun-write-map-function
 next-page: fun-summary

diff --git a/_zh-cn/overviews/scala3-book/interacting-with-java.md b/_zh-cn/overviews/scala3-book/interacting-with-java.md
@@ -2,6 +2,7 @@
 title: 与 Java 交互
 type: chapter
 description: This page demonstrates how Scala code can interact with Java, and how Java code can interact with Scala code.
+languages:[en]
 num: 72
 previous-page: tools-worksheets
 next-page: scala-for-java-devs

diff --git a/_zh-cn/overviews/scala3-book/introduction.md b/_zh-cn/overviews/scala3-book/introduction.md
@@ -2,6 +2,7 @@
 title: 导言
 type: chapter
 description: This page begins the overview documentation of the Scala 3 language.
+languages:[en, ru]
 num: 1
 previous-page: 
 next-page: scala-features

diff --git a/_zh-cn/overviews/scala3-book/methods-intro.md b/_zh-cn/overviews/scala3-book/methods-intro.md
@@ -2,6 +2,7 @@
 title: 方法 
 type: chapter
 description: This section introduces methods in Scala 3.
+languages:[en, ru]
 num: 23
 previous-page: domain-modeling-fp
 next-page: methods-most

diff --git a/_zh-cn/overviews/scala3-book/methods-main-methods.md b/_zh-cn/overviews/scala3-book/methods-main-methods.md
@@ -2,6 +2,7 @@
 title: main 方法
 type: section
 description: This page describes how 'main' methods and the '@main' annotation work in Scala 3.
+languages:[en, ru]
 num: 25
 previous-page: methods-most
 next-page: methods-summary
@@ -13,7 +14,6 @@ permalink: "/zh-cn/scala3/book/:title.html"
 ---
 
 
-
 Scala 3 提供了一种定义可以从命令行调用的程序的新方法：在方法中添加 `@main` 注释会将其变成可执行程序的入口点：
 
 ```scala

diff --git a/_zh-cn/overviews/scala3-book/methods-most.md b/_zh-cn/overviews/scala3-book/methods-most.md
@@ -2,6 +2,7 @@
 title: 方法特性
 type: section
 description: This section introduces Scala 3 methods, including main methods, extension methods, and more.
+languages:[en, ru]
 num: 24
 previous-page: methods-intro
 next-page: methods-main-methods

diff --git a/_zh-cn/overviews/scala3-book/methods-summary.md b/_zh-cn/overviews/scala3-book/methods-summary.md
@@ -2,6 +2,7 @@
 title: 总结
 type: section
 description: This section summarizes the previous sections on Scala 3 methods.
+languages:[en, ru]
 num: 26
 previous-page: methods-main-methods
 next-page: fun-intro

diff --git a/_zh-cn/overviews/scala3-book/packaging-imports.md b/_zh-cn/overviews/scala3-book/packaging-imports.md
@@ -2,6 +2,7 @@
 title: 打包和导入
 type: chapter
 description: A discussion of using packages and imports to organize your code, build related modules of code, control scope, and help prevent namespace collisions.
+languages:[en]
 num: 35
 previous-page: fun-summary
 next-page: collections-intro