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Add Filter (in place)

Tom Payne 2019-07-30 10:48:59 +02:00
parent 99bf2690f9
commit 2f2dcdeec7
1 changed files with 13 additions and 0 deletions
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13
SliceTricks.md

@ -69,6 +69,19 @@ a = append(a[:i], append(make([]T, j), a[i:]...)...)
a = append(a, make([]T, j)...)
```
#### Filter (in place)
```go
n := 0
for _, x := range a {
if keep(x) {
a[n] = x
n++
}
}
a = a[:n]
```
#### Insert
```go
a = append(a[:i], append([]T{x}, a[i:]...)...)