Исходники и презентации

lessons/slices_and_arrays/slicing_operations/main.go

@@ -0,0 +1,52 @@
+package main
+
+import (
+	"fmt"
+	"slices"
+)
+
+func sliceToEnd() {
+	data := make([]int, 4, 6)
+
+	slice := data[2:]
+	fmt.Println(len(slice)) // 2
+	fmt.Println(cap(slice)) // 4
+}
+
+func sliceMoreThanSize() {
+	data := make([]int, 2, 6)
+
+	slice1 := data[1:6]
+	_ = slice1
+}
+
+func sliceWithIncorrectIndeces() {
+	data := make([]int, 2, 6)
+
+	slice2 := data[1:7] // panic
+	_ = slice2
+
+	slice3 := data[2:1] // compilation error
+	_ = slice3
+
+	left := 2
+	right := 1
+	slice4 := data[left:right] // panic
+	_ = slice4
+}
+
+func sliceWithNilSlice() {
+	var data []int
+
+	slice := data[:]
+	slice = data[0:0]
+	slice = data[0:1] // panic
+	_ = slice
+}
+
+func increaseCapacity() {
+	data := make([]int, 0, 10)
+	data = data[:10:100] // panic
+
+	slices.Grow(data, 100)
+}