kwmt

data class User(val name : String, val latLng: LatLng)

data class LatLng(val lat: Int, val lng: Int)

fun deleteDuplicates() {
   // create data
    val results = (1..10).map {User("$it", LatLng(it % 4, it%4))}
    results.forEach {
	    println(it)    
    }

kwmt

import UIKit
import GoogleMaps

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        // https://developers.google.com/maps/documentation/ios-sdk/get-api-key#add_key
        GMSServices.provideAPIKey("YOUR_API_KEY")
       return true
    }

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val appBarConfiguration = AppBarConfiguration(setOf(R.id.titleScreen, R.id.aboutScreen))
setupActionBarWithNavController(navController, appBarConfiguration)

kwmt

File().outputStream().use { out ->
    bitmap.compress(Bitmap.CompressFormat.JPEG, 85, out)
    out.flush()
}

kwmt

val num =  'a'.toValue()
println(num)
// Output
// 42

private fun Char.toValue() : Int{
    // 仕様: https://www.icao.int/publications/Documents/9303_p3_cons_en.pdf の 20ページの最後から21ページの最初

    val num = this.toInt() - '0'.toInt()
    if(num < 10) {

kwmt

 val amari = 8.rem(3)
 println(amari)
 // Output
 // 2

kwmt

var isContinue:Boolean = true

val list  = arrayOf("hello", "good", "text", "hello2", "text2")
val result =   list.asSequence().takeWhile{isContinue}.reduce {s1, s2->
    if(s1.length == 4 && s2.length == 4) {
        isContinue = false
        return@reduce s1+s2
    }
    s2
}

kwmt

data class Person(val age:Int, val name:String) {
    
	val greet 
    	get() = "年齢は${age}です"
    
    fun testPrint() {
        println("testPrint ${age}" )
    }
}

kwmt

// kotlin 1.3.31

// MyClass.java
package inline;

import kotlin.Metadata;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

@Metadata(

kwmt

private fun Rect.rotateRect(degree:Float): Rect {
    val rectF = this.toRectF()
    val matrix = Matrix()
    matrix.setRotate(degree, rectF.centerX(), rectF.centerY())
    matrix.mapRect(rectF)
    return rectF.toRect()
}