pre allocate slices

Pre allocating slices with a target size reduces the number of allocations because we already know how big the slice will be and therefore need to allocate only once
2021-02-22 19:41:48 +01:00
parent e535975718
commit 1088faf95d
7 changed files with 8 additions and 8 deletions
@@ -36,7 +36,7 @@ type Resolutions []image.Rectangle

 // ParseResolutions creates an instance of Resolutions from resolution strings.
 func ParseResolutions(strs []string) (Resolutions, error) {
-	var rs Resolutions
+	rs := make(Resolutions, 0, len(strs))
 	for _, s := range strs {
 		r, err := ParseResolution(s)
 		if err != nil {