feat(container): add 'EmptySliceIfNil' function

voidint · voidint · commit 433b6a8e4624 · 2025-09-10T11:13:09.000+08:00
diff --git a/container/slice.go b/container/slice.go
@@ -28,3 +28,12 @@ func InSlice[T comparable](v T, items []T) bool {
 	}
 	return false
 }
+
+// EmptySliceIfNil checks if the given slice is nil. If it is, it returns an empty slice of the same type.
+// Otherwise, it returns the original slice.
+func EmptySliceIfNil[T any](src []T) (dst []T) {
+	if src == nil {
+		return make([]T, 0)
+	}
+	return src
+}

Original file line number	Diff line number	Diff line change
`@@ -28,3 +28,12 @@ func InSlice[T comparable](v T, items []T) bool {`
`28`	`28`	`}`
`29`	`29`	`return false`
`30`	`30`	`}`
	`31`	`+`
	`32`	`+// EmptySliceIfNil checks if the given slice is nil. If it is, it returns an empty slice of the same type.`
	`33`	`+// Otherwise, it returns the original slice.`
	`34`	`+func EmptySliceIfNil[T any](src []T) (dst []T) {`
	`35`	`+ if src == nil {`
	`36`	`+ return make([]T, 0)`
	`37`	`+ }`
	`38`	`+ return src`
	`39`	`+}`