Array and Slice in Golang (Basic)

Array Syntax :

Like most programming languages Go also has arrays, but arrays are rarely used in Go.

/* Declearing array here [5] is the limit of array, int is the type of elements and {elements} */ 

var arry = [5]int {1,2,3,4,5} 

/* Declearing array here [...] means array limit is not fixed, int is the type of elements and {elements} */ 

var arry = [...]int {1,2,3,4,5,6,... ...}

Slice Syntax :

In Go language we use a slice more than an array, it holds the sequence of values. Slice removes the limitations of arrays.

// One dimensional Slice. 

var slice = []int {1,2,3,4,5} 

// Multidimensional Slice.

 var multi_slice = [][]int

Difference between Array and Slice :

Using [...] makes an Array and using [] makes a Slice

// Array 

var arry = [5]int {1,2,3,4,5} 

//Slice 

var slice = []int {1,2,3,4,5}

Slicing the Slice :

package main
import ( "fmt" )

 func main() {

    var x = []int {4, 3, 4, 5, 6, 7}
    fmt.Println(x[:4])
}

 //Output : 4 3 4 5

Note: When we are slicing the slice we must use a Positive number cause the index number should be a positive number other wise it will casue errors.

Append Function :

The built-in append function is used for appending data in Slice.

package main 
import ( "fmt" ) 

func main() { 
   var x []int 
   x = append(x, 4, 3, 4, 5, 6, 7) 
   fmt.Println(x) 

}

// Output : 4 3 4 5 6 7

Let me know if there is any miss information or mistake, I just moved to Go from Python.

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