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kotlinlang

```external fun decodeURI(uri:String): String```
I don't see it defined in KJS so that would be how you add it

ref: <https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/decodeURI>

ah, so it is enough to declare any JavaScript function that is missing as external?

<https://kotlinlang.org/docs/js-interop.html#external-modifier>

you might have a look at the wrappers.
<https://github.com/JetBrains/kotlin-wrappers>
most JS apis are already avalable in the `kotlin-js` wrapper

i.e. <https://github.com/JetBrains/kotlin-wrappers/blob/7f9f748299541f94217264a29cf71fa97d6226e4/kotlin-js/src/jsMain/kotlin/js/uri/decodeURI.kt#L6>

Hee, hee - thanks a lot, although I know nothing about JavaScript.

But something strange is happening with external decodeURI. This code:

```        val decoded1 = decodeURI(cookies)
        val decoded2 = decodeURI(decoded1)
        debugLog("Decoded cookies 1: '$decoded1'")
        debugLog("Decoded cookies 2: '$decoded2'")```

(yes - double encoded data) shows in log:

```Decoded cookies 1: 'SESSION_ID=accessToken%3D%23sya29.a0AcM612zbV5lhv_HPT_TgYFapnJqhtK_oTcyMa7FsL-SzrzANQmneWAN1l7MqTkJraTd8IyJDYA985mGtRUYRI48glqdairfJO2UDJKXFzbJ4Hx-a-FXxwmtvuhG9Wio1IyDnO0caJIGtk8pwAo-VJUQCuFz-9shUwMnSa_ZKaCgYKAY4SARMSFQHGX2MiaFZtPNPgp1-VexDLcfoA9w0175%26userId%3D%23i1'
composeApp.uninstantiated.mjs:6208 Decoded cookies 2: 'SESSION_ID=accessToken%3D%23sya29.a0AcM612zbV5lhv_HPT_TgYFapnJqhtK_oTcyMa7FsL-SzrzANQmneWAN1l7MqTkJraTd8IyJDYA985mGtRUYRI48glqdairfJO2UDJKXFzbJ4Hx-a-FXxwmtvuhG9Wio1IyDnO0caJIGtk8pwAo-VJUQCuFz-9shUwMnSa_ZKaCgYKAY4SARMSFQHGX2MiaFZtPNPgp1-VexDLcfoA9w0175%26userId%3D%23i1'```

i guess you want to `decodeURIComponent` as you do not have an URI but just a part of it.

So maybe a bonus question - do you know what ktor comonent adds type annotations to fields, look at this decoded cookie:

'SESSION_ID=accessToken=#sya29.a0AcM612xBakbD6p0jtxGGVo4J6X-N2tGAFYtRMHsmcLGb3dodi9ZRXKXfgWTLnpOOSJNldIxKd6ozezL4tQHS94jE07CGqO2s0pW-zaWWmitR7If7vpAlD7SjLKF5VqN-QzEGriTtC-SHivhTiaVrEHXaXdWfRQZwc4S6ybIraCgYKAToSARMSFQHGX2Mi4bPkYdh7V06eGAZYlpoYPQ0175&amp;userId=#i1'

it has #s for string and #i for int, I didn't put them there...