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What I did Install Node.js Install Angular Try default app Install Node.js Few years ago, when I had used Ubuntu, I used nodebrew to install Node.js. But now, what shall I use? Use n My search result was I should use n . But the easiest way to install n had needed npm. npm install -g n So I installed Node.js by NodeSource first. Installing Node.js via package manager | Node.js distributions/README.md at master · nodesource/distributions · GitHub curl -sL https://deb.nodesource.com/setup_13.x | sudo -E bash - sudo apt-get install -y nodejs I installed Node.js version 13.9.0. Failed npm -g install After installing Node.js, I had tried install n and failed with permission error. example@example-Macmini:~$ npm install -g n npm WARN deprecated request@2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142 npm WARN checkPermissions Missing write access to /usr/lib/node_modules npm ERR! code EACCES npm ERR! syscall access npm ERR! path /usr/lib/nod...

Intro Because I had wanted to know how JavaScript worked, I tried to build and use V8. I used Ubuntu19.10 what installed on Mac mini. Because its Mac OS already hadn't been updated. Install and build V8 After installing Ubuntu, I installed git, vim, Python(ver.2.7.17) for building V8. sudo apt install git vim python Most of all software for building V8, I installed after a while by following the documents. But these had been needed at the begining of building. build V8 Most of all steps had been on the documents. But because I forgot some of them, So I got some errors :P 1. clone depot_tools and add installed path. depot_tools tutorial(7) 2. make a directory for installing v8 and move to there "mkdir ~/v8" & "cd ~/v8" 3. "fetch v8" Checking out the V8 source code - v8 4. update files "git pull --rebase origin" & "gclient sync" 5. install dependencies with "./build/install-build-deps.sh" Buildi...

Intro I tried to manage my ASP.NET Core & Angular projects with Azure Repos. And I wrote some tests of HttpClient for Angular. I added pipelines to execute on pulling request. Prepare I created new projects. Because I had wanted to the simple projects, so I used empty template for creating ASP.NET Core project. dotnet new empty -n AspNetCoreAngularSample And I added an Angular project. cd AspNetCoreAngularSample ng new client-apps I changed csproj, Startup.cs, angular.json and etc. for using JavaScript service as same as last time . Create Azure DevOps project I added project to Azure DevOps as same name. When I had opened Repos, because there had been no projects, so I only could links for cloning or pushing the project. I added remote repository to the ASP.NET Core & Angular projects. git remote add origin https://example@dev.azure.com/example/AspNetCoreAngularSample/_git/AspNetCoreAngularSample git push -u origin --all After all, I added a local branch and check...

Intro Sometimes I got errors when I had accessed to server with HttpClient. I had wanted to know what should I do, so I tried in some situations. Returning errors sample (ASP.NET Core) Because I had wanted to get some kinds of problems, I used Identity. Startup.cs using Files; using Microsoft.AspNetCore.Builder; using Microsoft.EntityFrameworkCore; using Microsoft.Extensions.Configuration; using Microsoft.Extensions.DependencyInjection; using Microsoft.Extensions.Hosting; using Microsoft.AspNetCore.Identity; using Microsoft.AspNetCore.SpaServices.AngularCli; using Models; using UpgradeSample.Models; using UpgradeSample.Products; using UpgradeSample.Users; public class Startup { private IConfigurationRoot Configuration { get; } public Startup(IHostEnvironment env) { ... } public void ConfigureServices(IServiceCollection services) { // DB Connect services.AddDbContext<UpgradeSampleContext>(options => options.UseNpgsql(Con...