Slice Operations

Code

package main

import (
    "fmt"
    "sort"
)

func main() {
    var s []int
    s = append(s, 1, 2, 3)
    s = append(s, []int{4, 5}...)

    // Slice
    sub := s[1:4]
    fmt.Println(sub)

    // Copy
    dst := make([]int, len(s))
    copy(dst, s)

    // Sort
    sort.Ints(s)
    fmt.Println(s)

    // Find
    idx := sort.SearchInts(s, 3)
    fmt.Println(idx)

    // Delete index 1
    s = append(s[:1], s[2:]...)
}

Explanation

Slices are dynamic arrays; append adds, copy duplicates, and slice tricks delete elements.

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