Data update

Task/Special-variables/V-(Vlang)/special-variables-1.v

@@ -0,0 +1,9 @@
+// function that returns multiple values
+fn foo() (int, int) {
+	return 2, 3
+}
+
+mut a, mut b := foo()
+println("${a} and ${b}")
+a, _ = foo() // to ignore particular returned values, use `_`
+println(a)

Task/Special-variables/V-(Vlang)/special-variables-2.v

@@ -0,0 +1,9 @@
+// ignore values, while iterating over keys
+m := {
+	'one': 1
+	'two': 2
+}
+
+for key, _ in m {
+	println(key)
+}

Task/Special-variables/V-(Vlang)/special-variables-3.v

@@ -0,0 +1,4 @@
+// "it", used in filter and map
+nums := [1, 2, 3, 4, 5, 6]
+even := nums.filter(it % 2 == 0)
+println(even)

Task/Special-variables/V-(Vlang)/special-variables-4.v

@@ -0,0 +1,6 @@
+// "a" and "b" in sorting arrays, used to provide custom sorting conditions
+mut numbers := [1, 3, 2]
+numbers.sort()
+println(numbers)
+numbers.sort(a > b) // reverse sort
+println(numbers)