Kotlin Blueprints

Named parameters

In Kotlin, we can call/bind a parameter with their name for any function. We can call the preceding function by interchanging the parameter sequence as well. Something like the following:

    showDetailedForecast(forecast = forecast, city =     forecastResult.city)

Observe that we swapped the place of the variable. And no wonder, all CSS classes that we have applied so far have a named parameter. Check all previous <div>, <h>, and <p> tags. Consider the following examples:

    val weatherDetailDiv = document.create.div(classes =        "detailsContainer")

    button(classes = "getWeatherButton")

    span(classes = "primaryText") { +"${Math.round(max)} °C" }