배우기를 멈추는 사람은 20세건 80세건 늙은 것이다.

fun flatMap( map: Map, flat: MutableMap? = mutableMapOf(), prefix: String? = null ): Map { flat!! for (k in map.keys) { val key = if (prefix == null) { k } else { "$prefix.$k" } if (map[k] is Map) { val m = map[k] as Map flatMap(m, flat, key) continue } flat[key] = map[k]!! } return flat }

https://itstory.tk/entry/Spring-Webflux-JDBC%ED%98%B9%EC%9D%80-blocking-call-%ED%95%B8%EB%93%A4%EB%A7%81-%EB%B0%A9%EB%B2%95 Spring Webflux + JDBC(혹은 blocking call) 핸들링 방법 스프링 5부터 Spring Webflux를 통해 reactive 개발이 가능하게 됐습니다. 요청당 스레드가 하나씩 차지했던 기존의 패러다임과 달리 Webflux는 non-blocking 시스템이 가능하게 해줍니다. 하지만 non-blocking itstory.tk

import time ts = time.time() print(ts) # 1594819641.9622827 import datetime; ct = datetime.datetime.now() print(ct) # 2020-07-15 14:30:26.159446 ts = ct.timestamp() print(ts) # 1594823426.159446 import time; gmt = time.gmtime() print(gmt) # time.struct_time(tm_year=2020, tm_mon=7, tm_mday=15, tm_hour=19, tm_min=21, tm_sec=6, tm_wday=2, tm_yday=197, tm_isdst=0) https://www.geeksforgeeks.org/get-c..

https://stackoverflow.com/questions/54875767/intellij-runs-kotlin-tests-annotated-with-ignore IntelliJ runs Kotlin tests annotated with @Ignore I have a Kotlin project that uses JUnit 5.2.0. When I use IntelliJ to run tests, it runs all tests, even those annotated with @org.junit.Ignore. package my.package import org.junit.Ignore import ... stackoverflow.com

Map map = new LinkedHashMap(); map.put("key", "value"); Properties properties = new Properties(); properties.putAll(map); https://stackoverflow.com/questions/8036332/converting-a-java-map-object-to-a-properties-object Converting a Java Map object to a Properties object Is anyone able to provide me with a better way than the below for converting a Java Map object to a Properties object? Map map =..

https://stackoverflow.com/questions/43664110/kotlin-if-item-not-in-list-proper-syntax Kotlin: "if item not in list" proper syntax Given Kotlin's list lookup syntax, if (x in myList) as opposed to idiomatic Java, if (myList.contains(x)) how can one express negation? The compiler doesn't like either of these: if (x not in stackoverflow.com

when (x) { is Int -> print(x + 1) is String -> print(x.length + 1) is IntArray -> print(x.sum()) } https://kotlinlang.org/docs/typecasts.html#smart-casts Type checks and casts | Kotlin kotlinlang.org