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Commit 4d302a1

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author
Rajeev Kumar Singh
committed
Restructured code into directories
1 parent 5356eb0 commit 4d302a1

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49 files changed

+102
-89
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49 files changed

+102
-89
lines changed
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package main
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import "fmt"
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func main() {
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var a = [5]string{"Alpha", "Beta", "Gamma", "Delta", "Epsilon"}
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// Creating a slice from the array
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var s []string = a[1:4]
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fmt.Println("Array a = ", a)
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fmt.Println("Slice s = ", s)
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/*
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low and high parameters are optional in a[low:high]
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The default value for low is 0, and high is the length of the slice.
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*/
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slice1 := a[1:4]
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slice2 := a[:3]
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slice3 := a[2:]
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slice4 := a[:]
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fmt.Println("slice1 = ", slice1)
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fmt.Println("slice2 = ", slice2)
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fmt.Println("slice3 = ", slice3)
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fmt.Println("slice4 = ", slice4)
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}
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package main
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import "fmt"
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func main() {
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/*
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The length of the slice is the number of elements in the slice.
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The capacity is the number of elements in the underlying array starting from the first element in the slice.
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*/
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a := [6]int{10, 20, 30, 40, 50, 60}
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s := a[1:4]
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fmt.Printf("s = %v, len = %d, cap = %d\n", s, len(s), cap(s))
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}
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package main
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import "fmt"
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func main() {
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// Creates an array of size 10, slices it till index 5, and returns the slice reference
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s := make([]int, 5, 10)
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fmt.Printf("s = %v, len = %d, cap = %d\n", s, len(s), cap(s))
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/*
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The capacity parameter in the make() function is optional. When omitted, it defaults to the specified length
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*/
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// Creates an array of size 5, and returns a slice reference to it
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var s1 = make([]int, 5)
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fmt.Printf("s1 = %v, len = %d, cap = %d\n", s1, len(s1), cap(s1))
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}

‎07-slices/slice_zero_value.go renamed to ‎07-slices/08-slice-zero-value/main.go

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import "fmt"
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func main() {
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// The zero value of a slice is nil. A nil slice doesn’t have any underlying array, and has a length and capacity of 0
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var s []int
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fmt.Printf("s = %v, len = %d, cap = %d\n", s, len(s), cap(s))
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‎07-slices/slice_copy.go renamed to ‎07-slices/09-slice-copy/main.go

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import "fmt"
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func main() {
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/*
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The copy() function copies elements from one slice to another
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func copy(dst, src []T) int
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*/
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src := []string{"Sublime", "VSCode", "IntelliJ", "Eclipse"}
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dest := make([]string, 2)
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‎07-slices/10-slice-append/main.go

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package main
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import "fmt"
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func main() {
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// The append() function appends new elements at the end of a given slice.
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// Appending to a slice that doesn't have enough capacity to accommodate new elements
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slice1 := []string{"C", "C++", "Java"}
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slice2 := append(slice1, "Python", "Ruby", "Go")
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fmt.Printf("slice1 = %v, len = %d, cap = %d\n", slice1, len(slice1), cap(slice1))
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fmt.Printf("slice2 = %v, len = %d, cap = %d\n", slice2, len(slice2), cap(slice2))
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slice1[0] = "C#"
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fmt.Println("\nslice1 = ", slice1)
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fmt.Println("slice2 = ", slice2)
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/*
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In the above example, since slice1 has capacity 3, it can’t accommodate more elements.
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So a new underlying array is allocated with bigger capacity when we append more elements to it.
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So if you modify slice1, slice2 won’t see those changes because it refers to a different array.
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*/
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}

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