Update higher-order-functions.md

Author: flomebul

Diff for: _tour/higher-order-functions.md

@@ -23,16 +23,8 @@ function `map` which is available for collections in Scala.
 
 {% tabs map_example_1 class=tabs-scala-version %}
 
-{% tab 'Scala 2' for=map_example_1 %}
+{% tab 'Scala 2 and 3' for=map_example_1 %}
 ```scala mdoc
-val salaries = Seq(20000, 70000, 40000)
-val doubleSalary = (x: Int) => x * 2
-val newSalaries = salaries.map(doubleSalary) // List(40000, 140000, 80000)
-```
-{% endtab %}
-
-{% tab 'Scala 3' for=map_example_1 %}
-```scala
 val salaries = Seq(20_000, 70_000, 40_000)
 val doubleSalary = (x: Int) => x * 2
 val newSalaries = salaries.map(doubleSalary) // List(40000, 140000, 80000)
@@ -49,15 +41,8 @@ an argument to map:
 
 {% tabs map_example_2 class=tabs-scala-version %}
 
-{% tab 'Scala 2' for=map_example_2 %}
-```scala:nest
-val salaries = Seq(20000, 70000, 40000)
-val newSalaries = salaries.map(x => x * 2) // List(40000, 140000, 80000)
-```
-{% endtab %}
-
-{% tab 'Scala 3' for=map_example_2 %}
-```scala
+{% tab 'Scala 2 and 3' for=map_example_2 %}
+```scala mdoc:nest
 val salaries = Seq(20_000, 70_000, 40_000)
 val newSalaries = salaries.map(x => x * 2) // List(40000, 140000, 80000)
 ```
@@ -70,15 +55,8 @@ compiler can infer the type based on the type of function map expects (see [Curr
 
 {% tabs map_example_3 class=tabs-scala-version %}
 
-{% tab 'Scala 2' for=map_example_3 %}
+{% tab 'Scala 2 and 3' for=map_example_3 %}
 ```scala mdoc:nest
-val salaries = Seq(20000, 70000, 40000)
-val newSalaries = salaries.map(_ * 2)
-```
-{% endtab %}
-
-{% tab 'Scala 3' for=map_example_3 %}
-```scala
 val salaries = Seq(20_000, 70_000, 40_000)
 val newSalaries = salaries.map(_ * 2)
 ```