[SWIFT] I don't know, so I'm going to write a list (you don't have to read it)

Updated from time to time

table of contents

-Skip because I'm writing something that doesn't matter -List of things you don't understand

I'm writing something that doesn't matter, so skip it

It's been two months since I registered with Qiita. It's getting colder than it was back then, and my neck and back hurt because I was shrinking.

It's been almost a year since I jumped into the IT industry. Under such circumstances, I had to come into contact with methods I had never used and languages ​​I had not studied. I always think that I will search on the net and end up with Qiita.

"I have to write an article soon ..."

It was a feeling similar to a mid-obsession. Registration for Qiita is free. How kind! It's a kind specification for me who is not motivated even if I create an account for a fee.

I'm writing an article for the first time now. When I first saw that it said "Write in Markdown notation", what is Markdown notation? I gently pressed the right end button. Let's read it lightly and write something that you can remember for the time being.

 Yup. pleasant.
 Displaying the code area with 3 tildes is much easier than using 4 spaces.

Besides, it is wonderfully fun that it is immediately reflected in the area on the right. At first, I thought, "I don't know what this is. ~~ Damn it. ~~" Isn't it fun to write it? I can't stop. I'm sorry to write only things that have nothing to do with Gudaguda, but it's fun to write anyway.

That said, my first article is just a list of what I want to write. In other words, there is nothing to gain from reading after this. It just says, "I don't know this, Hoon." ** If you're looking for an answer or hint, go back to your search results. ** **

I'm mainly studying ** Swift **. Recently, I had to read ** Objective-C ** as well, so it was awkward. I managed to read and write. However, this time I overlooked Objective-C and couldn't understand Swift.

that's no good. It's finally time to open the list of things you don't understand in Notepad.

What you don't know

It's like a memorandum or cheat sheet for me that I'm about to write. I would like to write both Objective-C and Swift code as much as possible. I'll just write it roughly. This is almost a memo.

--Editing of character strings (cutting out, searching, etc.) --I was a little troubled when using it in Objective-C --There are wavy brackets when writing properties (maybe instances) in a Switch statement --Properties and instances --Differences in instance generation between Objective-C and Swift (I want to know when to add *) --How to reference in a project where Objective-C and Swift files are mixed --User Defaults --How to turn the For statement (and the While statement) --How to write SQL (maybe it feels like a cheat sheet) --How to write screen transitions (Push, Modal, etc., mainly seen in development. And Segue) --Connect the same storyboard, another storyboard, and another storyboard destination with segue. --How to use the API (I made a weather confirmation app, but the API of the Japan Meteorological Agency has changed, so I want to fix it) --How to move the terminal (still unusable) --Strong, Weak, Unowned way of thinking (also escape) --Closer (I often see it, but I really don't know how to use it or how to write it) --How to use enum --How to use extension (how to use in the same file and in another file)

For now, there are many things I don't understand. It's a medium amount on the list. It makes me wonder if I will do my best. I can write it, but it seems that I often do not know what it is, so I would like to fill it.

Then, this is a complete digression, but I wanted to draw the image character of Qiita. It's completely unofficial and playful, so I think I'll be able to write an article soon. The name has already been decided. ** Kitan ** I hope you can write an article.


■ Addition

Confirm that the in-page link is not working. (2021/1/20)

 How to fix:
 Before correction
 -[Skip because I'm writing something that doesn't matter](# どうでもいいことを書いているから飛ばせ)
# I left a half-width space after.

 Revised
 -[Skip because I'm writing something that doesn't matter](#どうでもいいことを書いているから飛ばせ)
# Delete the half-width space after.

When I searched on the net, I saw an article saying that half-width spaces should be "-", but it is probably possible. In my case, the headline was "# I'm writing something that doesn't matter, so skip it", but I was able to link without hyphens.

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