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• example-flow-21.kt

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jvmTest.guide.example-flow-21.kt Maven / Gradle / Ivy

/*
 * Copyright 2016-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
 */

// This file was automatically generated from flow.md by Knit tool. Do not edit.
package kotlinx.coroutines.guide.exampleFlow21

import kotlinx.coroutines.*
import kotlinx.coroutines.flow.*

fun main() = runBlocking { 
    val nums = (1..3).asFlow().onEach { delay(300) } // numbers 1..3 every 300 ms
    val strs = flowOf("one", "two", "three").onEach { delay(400) } // strings every 400 ms
    val startTime = currentTimeMillis() // remember the start time 
    nums.zip(strs) { a, b -> "$a -> $b" } // compose a single string with "zip"
        .collect { value -> // collect and print 
            println("$value at ${currentTimeMillis() - startTime} ms from start") 
        } 
}