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Updated SliceTricks (markdown)

Go101 2021-05-09 12:12:02 -04:00
parent e5c5218db6
commit 10042f7dbc
1 changed files with 5 additions and 0 deletions
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5
SliceTricks.md

@ -17,6 +17,11 @@ copy(b, a)
// elements to be appended to b after copying. // elements to be appended to b after copying.
b = append([]T(nil), a...) b = append([]T(nil), a...)
b = append(a[:0:0], a...) b = append(a[:0:0], a...)
// This one-line implementation is equivalent to the above
// tow-line make+copy implementation. But it is actually
// a bit slower (as of Go toolchain v1.16).
b = append(make([]T, 0, len(a)), a...)
``` ```
#### Cut #### Cut