mutable.Filter 会复制元素

https://goplay.tools/snippet/n4gxxXL3Tge package main import ( "fmt" "GitHub.com/samber/lo/mutable" ) type el struct { Key string Val any } func main() { doc := []el{ "foo", 234, "bar", 345, "baz", 111, } mutable.Filter( doc, func(e el) bool { return e.Key != "bar" }, ) fmt.Printf("Hello, World! %+v", doc) } 输出: Hello, World! [{Key:foo Val:234} {Key:baz Val:111} {Key:baz Val:111}]