slices: add Difference function #60
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Signed-off-by: cui fliter <imcusg@gmail.com>
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This PR (HEAD: 33ca1be) has been imported to Gerrit for code review. Please visit https://go-review.googlesource.com/c/exp/+/471277 to see it. Tip: You can toggle comments from me using the |
alexandear
reviewed
Mar 6, 2023
| if s2len == 0 { | ||
| return s1 | ||
| } | ||
| s2Map := make(map[E]bool, s2len) |
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Maybe we should use map[E]struct{}?
Suggested change
| s2Map := make(map[E]bool, s2len) | |
| s2Map := make(map[E]struct{}, s2len) |
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There are many scenarios where it is necessary to obtain the difference of two slices. At present, the more common method is to create a new utils package in the project and write the method implementation in it. Now that the Go standard library has a new slices package, it is recommended to add an API:
Update golang/go#58730