Go using slice to simulate vector function

This is a creation in Article, where the information may have evolved or changed.

Appendvector

append(a, b...)

Copy

append([]T(nil), a...)

makelen(a))copy(b, a)

Cut delete a range of I~j

copy(a[i:], a[j:])forlenlen(a); k < n; k++ {    nil//or the zero value of T}a = a[:len(a) - j + i]

Delete Deletes the specified I

copy(a[i:], a[i+1:]a[len(a] - 1nil//or zero value of Ta = a[:len(a)-1]

Expand in I position expansion J position out

appendappend(make([]T, j), a[i:]...)...)

Extend in the last expansion of J position

appendmake([]T, j)...)

Insert at I position insertion

appendappend([]T{x}, a[i:]...)...)

Here a new slice is created, then copy the back half of a to the new slice, copying the new slice to a, here two times.
The following method is copied once

appendnil)//or zero value of Tcopy(a[i+1:], a[i:])a[i] = x

Insertvector inserting vector b

appendappend(b, a[i:]...)...)

Pop

x, a = a[len(a)-1], a[:len(a)-1]

Push

append(a, x)

Shift

x, a := a[0], a[i:]

Unshift

append([]T{x}, a...)

Filter

b := a[:0]forrange a {    if f(x) {        append(b, x)    }}

Reversing

for  left, right: =< Span class= "Hljs-number" > 0 , len  (a)- 1 ; Left < right;  Left, right = left-, right- 1  {A[left], a[right] = A[right], A[left]}