Golang proposal: strings,bytes: add ReplaceOnce

Proposal Details

as there many usage of Replace(old, new, 1). I Proposal to add ReplaceOnce to strings and bytes package. Like wise ReplaceAll.

func ReplaceOnce(s, old, new string) string {
    return Replace(s, old, new, 1)
}

func ReplaceOnce(s, old, new []byte) []byte {
    return Replace(s, old, new, 1)
}

Comment From: seankhliao

Many does not quite rise to the level of majority ~65% https://github.com/golang/go/issues/27864#issuecomment-424852672 when ReplaceAll was added. plus once we add a function, some other value will take over the top as spot.

Once is also longer than , 1, and arguably generates confusion about why it exists. All at least reduces confusion about negative numbers.

Comment From: zigo101

This got closed?

@seankhliao So you really think your opinion is always correct and you have the right to close any proposals? Please respect community members.

@aclements @ianlancetaylor

Comment From: zigo101

@aclements @ianlancetaylor

Kindly re-ping. We should respect community members and the proposal process.

Comment From: ianlancetaylor

I will reopen, but I agree that this seems unlikely to be accepted.

Comment From: TapirLiu

@cuiweixie

as there many usage of Replace(old, new, 1). ...

You should show some examples.

I don't know if there are uses cases of Replace with 2+ as the last arguments (a.k.a. neither 1 nor -1). In theory, the possibility is low.