arrays
Examples of slicing, copying, appending, and prepending arrays.
Node.js
const array = [1, 2, 3, 4, 5]
console.log(array)
const clone = array.slice(0)
console.log(clone)
const sub = array.slice(2,4)
console.log(sub)
const concatenated = clone.concat([6, 7])
console.log(concatenated)
const prepended = [-2,-1,0].concat(concatenated)
console.log(prepended)
Output
[ 1, 2, 3, 4, 5 ]
[ 1, 2, 3, 4, 5 ]
[ 3, 4 ]
[ 1, 2, 3, 4, 5, 6, 7 ]
[ -2, -1, 0, 1, 2, 3, 4, 5, 6, 7 ]
Go
package main
import "fmt"
func main() {
array := []int{1, 2, 3, 4, 5}
fmt.Println(array)
clone := make([]int, len(array))
copy(clone, array)
fmt.Println(clone)
sub := array[2:4]
fmt.Println(sub)
concatenated := append(array, []int{6, 7}...)
fmt.Println(concatenated)
prepended := append([]int{-2, -1, 0}, concatenated...)
fmt.Println(prepended)
}
Output
[1 2 3 4 5]
[1 2 3 4 5]
[3 4]
[1 2 3 4 5 6 7]
[-2 -1 0 1 2 3 4 5 6 7]
当前内容版权归 miguelmota 或其关联方所有,如需对内容或内容相关联开源项目进行关注与资助,请访问 miguelmota .