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함수 안에서 this는 그 함수를 호출한 객체, 즉 그 함수가 소속되어 있는 객체를 의미한다. var funcThis = null; function Func(){ funcThis = this;}var o1 = Func(); // 여기서 funcThis는 window를 가르킴if(funcThis === window){ document.write('window ');} var o2 = new Func(); // 여기서 funcThis는 Func()가 소속된 o2를 가르킴if(funcThis === o2){ document.write('o2 ');}

I'd like to give you a situation to act out.You've bought concert tickets for yourself and a friend, but you can't make it due to illness.Call your friend to explain the situation and suggest two or three alternatives to the problem.Hi, this is Jaehoon. I am really afraid that I have bad news for you. You know, we are supposed to go to the concert tonight. but, I don't think I can make it. I've ..

MainActivity.java123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293package com.tistory.jaehoonx2.doitmission_17; import android.content.Context;import android.database.sqlite.SQLiteDatabase;import android.database.sqlite.SQLiteOpenHelper;import android.support.v7.app.App..

What kind of technology do you use the most these days? What is it? What is it used for?Please tell me about it in as much detail as possible.The technology I use the most these days is my smartphone. Thanks to the smartphone, I can be free from time and space. From reserving movie tickets to covering banking services, I can do anything with the small machine. Because I'm really busy with my stu..

I want to know more about where you live. What kind of house or apartment is it?I live in an apartment in Pohang. I moved here three months ago because the public transportation here is really convenient. Also, it takes only fifteen minutes from my place to school by bus. Ah, I have one more thing to add. A small park is in front of my place. So many people take a walk with their pets in the par..

Do you still listen to the same kind of music you did when you were a child? If not, how have your preferences changed?When I was young, I was interested in soft and easy listening music like ballads. It helped me focus on my studies. But when I was a freshman in college, I met my roommate who loves Christian music. When he wakes up in the morning, he put his favorite Christian music as his alar..

When do you usually go to coffee shops?What do you typically order, and what do you do while you are there? I go to the cafe almost every day. I usually drink a cup of coffee in the afternoon. On my way to school, I like to drop by a cafe near my school. I almost always order iced americano and never forget to add an extra shot of espresso. Sometimes I order a sandwich with smoked salmon. The co..

어댑터 패턴 (Adapter Pattern) 그림의 설명을 보면"한 클래스의 인터페이스를 클라이언트에서 사용하려 하는 다른 인터페이스로 변환한다. 어댑터 패턴은 인터페이스가 호환이 되지 않아서 같이 쓸 수 없는 클래스들을 연결해서 쓸 수 있게 한다."라고 되어 있다. 너무 말이 어렵고 추상적이다.어댑터 패턴은 쉽게 생각해서 돼지코를 떠올리면 된다. 한국에서 사용하는 전자기기(220V)를 일본에서는 사용하지 못한다.110V짜리 일자 모양의 소켓이기 때문이다.이를 해결하기 위해 우리는 동그란 모양 플러그를 일자 모양으로 바꿔주는 돼지코를 끼워주어야 한다. 어댑터도 이와 마찬가지이다.한 클래스의 인터페이스(220V)를 사용하고자 하는 다른 인터페이스(110V)로 변환해준다.원래대로라면 호환성이 없어서 함께 사..

Tell me about an unforgettable trip that you took. Why was it so unforgettable? Give me all the details about the experience.In last year, I was in Kyrgyzstan as a volunteer. There was a huge national holiday season. So, as a vacation, I visited a lake named Song-Kul with my colleagues. It is located at the top of the mountain, which height is about 3000m. The biggest reason why I could not forg..