• Diary

Sometimes, I look for birds while walking around and I bought a pair of binoculars for that. Birds live everywhere, but it's pretty hard for me to find them. Therefore, I keep in mind two things when

• Vitest

I wrote a blog post about implementing utility types by ourselves. To check if the two types are the same, the expectTypeOf API in Vitest is very convenient. // In utility-type.test-d.ts import { desc

• TypeScript

TypeScript provides a lot of utility types. These are not only convenient but also teach us TypeScript syntax. For example, Pick is used to create a type that selects specific properties from a type o

• Diary

Now, I'm rebuilding my blog with Svelte including some design changes. I have two reasons: To have a place to post what's on my mind roughlyTo learn a new programming language or framework, and how to

• Diary

Yesterday, I walked around Sakura City to visit a museum and heard a chime; I quickly recognized it as "Goin' Home". It was probably my first time hearing it as a chime but somehow I felt a little bit

• Diary

Recently, my fridge was not working properly; everything inside was almost at room temperature. I found that a huge chunk of ice had formed in the freezer, and it was pushing the door open. After remo

• Diary

During summer, I often eat hiyashi chuka, cold noodles topped with some ingredients like ham, eggs, tomatoes and cucumbers. It also has a slightly sweet sauce. I like to think about which pair of the