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My first post

I will write something about the programming what I learn or try in English.

Because I have learned TypeScript, Angular, etc, I will  write about them first.

All of the posts are just for myself. But I hope they also will be useful for someone :)


If you want, you can write  some comments in English, Japanese, or Chinese.

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[TypeScript] Try React 1

Intro This time I tried React. First, I referred Documents and Tutorial. React – A JavaScript library for building user interfaces GitHub - facebook/react: A declarative, efficient, and flexible JavaScript library for building user interfaces. Getting started with React - Learn web development | MDN Create a project To create a new React project, I used "Create React App". GitHub - facebook/create-react-app: Set up a modern web app by running one command. It created these files. .git node_modules public L favicon.ico L index.html L logo192.png L logo512.png L manifest.json L robots.txt src L App.css L App.test.tsx L App.tsx L index.css L index.test.tsx L index.tsx L logo.svg L react-app-env.d.ts L serviceWorker.ts L setupTests.ts .gitignore package.json package-lock.json README.md tsconfig.json Make the page work with IE11 I could view the page by "npm start" or "npm run start".   ...
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[PostgreSQL] Play with TypeORM 1

Intro This time, I tried accessing Database by TypeORM. Because I wanted to manage Database tables by ORM, I created a table first.  GitHub - typeorm/typeorm   TypeORM - Amazing ORM for TypeScript and JavaScript (ES7, ES6, ES5). Installation and creating a project Installation TypeORM needed "reflect-metadata" and database driver. npm install --save typeorm reflect-metadata pg typescript tsc npm install --save-dev @types/node And I also installed "ts-node" to skip compiling. npm install --save ts-node Preparing References I could generate a TypeORM project by TypeORM command. npx typeorm init --name gen-typeorm-sample --database postgres I refered Most of all settings from it. Adding files and folders First, I added tsconfig.json. npx tsc --init And I edited like below. tsconfig.json { "compilerOptions": { /* Basic Options */ "incremental": true, "target": "es5", "module": "comm...
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[Angular 10 + NgRx + Nest.js] Create project

Intro This time, I added server-side. I choosed Nest.js because I love TypeScript and I had been interested in using TypeScript in server-side programming. Environments Angular ver.10.0.2 @ngrx/store ver.9.2.0 @ngrx/effects ver.9.2.0 @nestjs/ng-universal ver.2.0.1 Couldn't add @ngrx/store into the Angular 10 project First, I created an Angular project and tried adding @ngrx/store into it. And I got an error. Installing packages for tooling via npm. Installed packages for tooling via npm. The package that you are trying to add does not support schematics. You can try using a different version of the package or contact the package author to add ng-add support. According to the issue below, I should add "@latest". npx ng add @ngrx/store@latest Because if I didn't add it, the @ngrx/store version was too low.    cannot use ng add to install ngrx store · Issue #2604 · ngrx/platform · GitHub Though I didn't know I should add "@latest" into ...
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