Remove the redundant 'val' and 'new' keywords

_ba/tour/operators.md

@@ -29,8 +29,8 @@ Međutim, lakše je čitati kada se napiše kao infiksni operator:
 Možete koristiti bilo koji legalni identifikator kao operator. 
 To uključuje i imena kao `add` ili simbole kao `+`.
 ```tut
-case class Vec(val x: Double, val y: Double) {
-  def +(that: Vec) = new Vec(this.x + that.x, this.y + that.y)
+case class Vec(x: Double, y: Double) {
+  def +(that: Vec) = Vec(this.x + that.x, this.y + that.y)
 }
 
 val vector1 = Vec(1.0, 1.0)

_ja/tour/operators.md

@@ -29,8 +29,8 @@ Scalaでは演算子はメソッドです。パラメータを1つだけ持つ
 
 有効な識別子であれば演算子として使用できます。これは `add`のような名前も`+`のような記号も含みます。
 ```tut
-case class Vec(val x: Double, val y: Double) {
-  def +(that: Vec) = new Vec(this.x + that.x, this.y + that.y)
+case class Vec(x: Double, y: Double) {
+  def +(that: Vec) = Vec(this.x + that.x, this.y + that.y)
 }
 
 val vector1 = Vec(1.0, 1.0)

_ru/tour/operators.md

@@ -26,8 +26,8 @@ prerequisite-knowledge: case-classes
 ## Создание и использование операторов
 В качестве оператора можно использовать любой допустимый символ. Включая имена на подобии `add` или символ (символы) типа `+`.
 ```tut
-case class Vec(val x: Double, val y: Double) {
-  def +(that: Vec) = new Vec(this.x + that.x, this.y + that.y)
+case class Vec(x: Double, y: Double) {
+  def +(that: Vec) = Vec(this.x + that.x, this.y + that.y)
 }
 
 val vector1 = Vec(1.0, 1.0)

_tour/operators.md

@@ -26,8 +26,8 @@ However, it's easier to read as an infix operator:
 ## Defining and using operators
 You can use any legal identifier as an operator. This includes a name like `add` or a symbol(s) like `+`.
 ```tut
-case class Vec(val x: Double, val y: Double) {
-  def +(that: Vec) = new Vec(this.x + that.x, this.y + that.y)
+case class Vec(x: Double, y: Double) {
+  def +(that: Vec) = Vec(this.x + that.x, this.y + that.y)
 }
 
 val vector1 = Vec(1.0, 1.0)

_zh-cn/tour/operators.md

@@ -26,8 +26,8 @@ previous-page: type-inference
 ## 定义和使用运算符
 你可以使用任何合法标识符作为运算符。 包括像 `add` 这样的名字或像 `+` 这样的符号。
 ```tut
-case class Vec(val x: Double, val y: Double) {
-  def +(that: Vec) = new Vec(this.x + that.x, this.y + that.y)
+case class Vec(x: Double, y: Double) {
+  def +(that: Vec) = Vec(this.x + that.x, this.y + that.y)
 }
 
 val vector1 = Vec(1.0, 1.0)