2024-06-21

Writerside/topics/Object.md

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+# Object
+
+```kotlin
+val charlie = object {
+    val name = "Charlie"
+    val age = 13
+    override fun toString() = "$name is $age-year-old."
+}
+```
+
+## 오브젝트 선언
+
+싱글턴 패턴에 사용됩니다.
+
+```kotlin
+object MyObject {
+    fun doSomething() {
+    //...
+    }
+}
+
+MyObject.doSomething()
+```
+
+## 컴패니언 오브젝트
+
+```kotlin
+class MyClass {
+    companion object Factory {
+        fun create(): MyClass = MyClass()
+    }
+}
+
+val x = MyClass.Companion
+```