```val values = match.groupValues.drop(1) // ["kotlin slack"] var newResponse = filter.response!! //...

# getting-started

[zt]

val values = match.groupValues.drop(1) // ["kotlin slack"]
var newResponse = filter.response!! // "hi $1"
values.forEachIndexed { index, value ->
    newResponse = filter.response!!.replace("\$$index", value)
}

// newResponse = "hi kotlin slack"

Is there some cleaner way of doing this? I wanna replace $0, $1, $2 , etc, with its corresponding value

[ephemient]

repsonse.replace("\$([0-9])".toRegex()) { match ->
    values[match.group(1).toInt()]
}

[Michael de Kaste]

you can also use java's built-in formatting:

"hi $3, $1 and $2"
    .replace("""\$(\d+)""".toRegex()) { "%${it.groupValues[1]}\$s" }
    .format("tom", "alice", "bob")

// hi bob, tom and alice

[ephemient]

only if you can guarantee there's no % in the original string

[Michael de Kaste]

perhaps OP manages the "filter.response" callsite so he can just do string formatting to begin with