```val string = "8% of 25 is the same as <img c...

# announcements

[mending3]

val string = "8% of 25 is the same as <img class=\"limit\">There are no heroes in a punk rock band <img class=\"limit\">"

        val arraySearch = arrayOf("<img class=\"limit\">", "<img class=\"limit\">")

        val arrayReplacement = arrayOf("<img class=\"another-limit\" data-id=\"1\">", "<img class=\"another-limit\" data-id=\"2\">")

        arraySearch.forEachIndexed { index, it ->
            string.replace(it, arrayReplacement[index])
        }
println(string)

the string doesn't get replaced. still showing 8% of 25 is the same as <img class="limit">There are no heroes in a punk rock band <img class="limit"> where it should have been 8% of 25 is the same as <img class="another-limit" data-id="1">There are no heroes in a punk rock band <img class="another-limit" data-id="2">

[Youssef Shoaib [MOD]]

string.replace returns the replaced string, but it doesn't modify the original string, instead you want to have var string and then do string = string.replace(...)

[mending3]

your answer is close. shows me:
8% of 25 is the same as <img src="/someimage.png" class="another-limit" data-id="2">There are no heroes in a punk rock band <img src="/someimage.png" class="another-limit" data-id="2"> which is unexpected

[mending3]

notice the data-id values don't match

[Youssef Shoaib [MOD]]

that's because you're replacing the same value twice I think. Use string.replaceFirst instead

[Youssef Shoaib [MOD]]

I just tried it out on the playground and yeah it works: https://play.kotlinlang.org/#eyJ2ZXJzaW9uIjoiMS40LjIwIiwiY29kZSI6ImZ1biBtYWluKCkge1xuIC[…]4oc3RyaW5nKVxufSIsInBsYXRmb3JtIjoiamF2YSIsImFyZ3MiOiIifQ==

[Youssef Shoaib [MOD]]

var string = "8% of 25 is the same as <img class=\"limit\">There are no heroes in a punk rock band <img class=\"limit\">"

val arraySearch = arrayOf("<img class=\"limit\">", "<img class=\"limit\">")

val arrayReplacement = arrayOf("<img class=\"another-limit\" data-id=\"1\">", "<img class=\"another-limit\" data-id=\"2\">")

arraySearch.forEachIndexed { index, it ->
    string = string.replaceFirst(it, arrayReplacement[index])
}

println(string)

[mending3]

tried with listOf()

var string = "8% of 25 is the same as <img src=\"/someimage.png\" class=\"limit\">There are no heroes in a punk rock band <img src=\"/someimage.png\" class=\"limit\">"

        val images = "<img src=\"/someimage.png\" class=\"another-limit\" data-id=\"1\">,<img src=\"/someimage.png\" class=\"another-limit\" data-id=\"2\">"

        val arraySearch = listOf("<img src=\"/someimage.png\" class=\"limit\">", "<img src=\"/someimage.png\" class=\"limit\">")

        val arrayReplacement = images.split(",")

        // var replacedString = ""
        arraySearch.forEachIndexed { index, it ->
            string = string.replace(it, arrayReplacement[index])
        }

        println(string)
        return string

shows 8% of 25 is the same as <img src="/someimage.png" class="another-limit" data-id="1">There are no heroes in a punk rock band <img src="/someimage.png" class="another-limit" data-id="1">
notice the data-id value is 1 all over the place.
why is that?

[Youssef Shoaib [MOD]]

Again try using string.replaceFirst. Check the code snippet that I just sent btw because I tried it out and it works

[mending3]

yea it works. but what if I want to assign it to an empty string?

var replacedString = ""
        arraySearch.forEachIndexed { index, it ->
            replacedString = string.replaceFirst(it, arrayReplacement[index])
        }

        println(replacedString)

this shows me: 8% of 25 is the same as <img src="/someimage.png" class="another-limit" data-id="2">There are no heroes in a punk rock band <img src="/someimage.png" class="limit">

[Youssef Shoaib [MOD]]

Then do this:

var replacedString = string
        arraySearch.forEachIndexed { index, it ->
            replacedString = replacedString.replaceFirst(it, arrayReplacement[index])
        }
        println(replacedString)

[mending3]

Thank you so much.

[Youssef Shoaib [MOD]]

No problem at all

[nkiesel]

`val replaced = arraySearch.zip(arrayReplacement).fold(string) { acc, (s, r) -> acc.replaceFirst(s, r) }`is another way to accomplish what you want