> ng new my-app

> ng new my-app --dry-run

>ng new my-app --dry-run
installing ng
You specified the dry-run flag, so no changes will be written.
  create .editorconfig
  create README.md
  create src\app\app.component.css
  create src\app\app.component.html
.
.
.
Project 'my-app' successfully created.

> ng new my-app --skip-install

> ng new --help

"project": {
      "name": "my-app"
  },

"apps": [
{
   "root": "src",
   "outDir": "dist",

"prefix": "app",

@Component({
  selector: 'app-root',

> ng new my-project --skip-install --prefix myCompany

> ng new my-project --skip-install --skip-git --skip-tests --skip-commit

"styles": [
     "styles.css"
],

"defaults": {
   "styleExt": "css",
   "component": {}
  }

> ng new my-project --skip-install --style sass

"styles": [
    "styles.sass"
],
"defaults": {
   "styleExt": "sass",
   "component": {}
}

@Component({
    selector: 'app-root',
    templateUrl: './app.component.html',
    styleUrls: ['./app.component.sass']
})

> ng new my-project --skip-install --routing

const routes: Routes = [
  {
     path: '',
     children: []
  }
];

imports: [
   BrowserModule,
   FormsModule,
   HttpModule,
   AppRoutingModule
],

>ng serve -o

 http://localhost:4200/

 <h1>
Test
  {{title}}
</h1>

>ng set apps.prefix myCompany
>ng set apps.prefix myCompany -g

>ng set defaults.styleExt sass
>ng set defaults.styleExt sass -g

> ng lint

> ng lint --help

> ng lint --format stylish

>ng lint --fix

import { Component } from '@angular/core'
let number = 10;

>ng lint --format stylish

/src/app/app.component.ts[3, 5]: Identifier 'number' is never reassigned; use 'const' instead of 'let'.
/src/app/app.component.ts[1, 42]: Missing semicolon

Lint errors found in the listed files.

import { Component } from '@angular/core';
const number = 10;

ReSharper 2021.3 Brings Visual Studio 2022 Support, More C# 10 Features, and Improved Support for Nullable Reference Types and C#! 

آن را نصب نموده و بعد از تکمیل شدن، visual studio را restart کنید.

پروژه‌ی console خود را باز کرده و از طریق Add -> new item، آیتم OData client را جستجو کرده و با نام ProductClient.tt آن را تولید نمایید (نام آن اختیاری است):

فایل ProductClient.tt را که یک T4 code generator میباشد، باز کرده و مقدار ثابت MetadataDocumentUri را به آدرس سرویس odata خود تغییر دهید:

public const string MetadataDocumentUri = "http://localhost:port/odata/";

روی این آیتم کلیک راست و گزینه‌ی Run Custom tool را انتخاب نمایید. این تمام کاری است که نیاز به انجام دادن دارید.

حال فایل Program.cs را باز کرده و آن‌را اینگونه تغییر دهید:

using ConsoleApplication1.OwinAspNetCore.Models;
using System;
using System.Linq;
namespace ConsoleApplication1
{
    public class Program
    {
        static void Main(string[] args)
        {
            Uri uri = new Uri("http://localhost:24977/odata");

            //var context = new Default.Container(uri);
            var context = new TestNameSpace.TestNameSpace(uri);

            //get
            var products = context.Products.Where(pr => pr.Name.Contains("a"))
                .Take(1).Select(pr => new { Firstname = pr.Name, PriceValue = pr.Price }).ToList();

            //add
            context.AddToProducts(new Product() { Name = "Name1", Price = 123 });

            //update
            Product p = context.Products.First();
            p.Name = "changed";
            context.UpdateObject(p);

            //delete
            context.DeleteObject(context.Products.Last());

            //commit
            context.SaveChanges();
        }
    }
}

مشاهده میفرمایید که همه‌ی عملیات‌های لازم برای CRUD، به شرط اینکه در سمت سرور طراحی شده باشند، به راحتی از سمت کلاینت قابل فراخوانی خواهند بود.

از این ویژگی فوق العاده میتوان حتی در کلاینت‌ها جاوااسکریپتی نیز استفاده کرد. فرض کنید نرم افزار تحت وبی را با استفاده از jquery یا angularjs طراحی کرده‌اید. قاعدتا فراخوانی درخواست‌های شما به سمت سرور، چیزی شبیه به این خواهد بود:

//angularjs
$http.get("/products/get", {Name: "Test", Company: "Test"})
    .then(function(response) {
        console.log(response.data);
    });

//jquery
$.get("/products/get", {Name: "Test", Company: "Test"}, function(data, status){
        console.log("Data: " + data);
    });

با استفاده از odata و typescript و یک library مربوط به odata client در سمت کلاینت، نرم افزار شما بجای موارد، بالا چیزی شبیه به مثال زیر خواهد بود (با همراه داشتن strongly typed و intellisense کامل)

let product1 = await context.products.filter(c => c.Name.contains("Ali")).toArray();
let product2 = await context.products.getSomeFunction(1, 'Test');
context.product.add({Name: 'Test'} as Product);
await context.saveChanges()

در مقاله‌های آتی به ویژگی‌های بیشتری از Odata خواهیم پرداخت.

 XQuery [query()]: The name "p" does not denote a namespace.

 /books/book[1]/title/chapter

 XQuery [query()]: 'order by' requires a singleton (or empty sequence), found operand of type 'xs:integer +'

import { connect } from "react-redux";

import Posts from "../components/Posts";

const mapStateToProps = state => {
  console.log("PostsContainer->mapStateToProps", state);
  return {
    ...state.postsReducer
  };
};

export default connect(mapStateToProps)(Posts);

const Posts = ({ posts, loading, error }) => {
  return (
  // ...

import { useSelector } from "react-redux";

// ...

const HooksPosts = () => {
  const { posts, loading, error } = useSelector(state => state.postsReducer);
  return (
  // ...

import PostsContainer from "./containers/Posts";

function App() {
  return (
    <main className="container">
      <PostsContainer />
    </main>
  );
}

import HooksPosts from "./components/HooksPosts";

function App() {
  return (
    <main className="container">
      <HooksPosts />
    </main>
  );
}

import { connect } from "react-redux";

import { fetchPostsAsync } from "../actions";
import FetchPosts from "../components/FetchPosts";

const mapDispatchToProps = {
  fetchPostsAsync
};

export default connect(null, mapDispatchToProps)(FetchPosts);

const FetchPosts = ({ fetchPostsAsync }) => {

import React from "react";
import { useDispatch } from "react-redux";

import { fetchPostsAsync } from "../actions";

const HooksFetchPosts = () => {
  const dispatch = useDispatch();
  return (
    <section className="card mt-5">
      <div className="card-header text-center">
        <button
          className="btn btn-primary"
          onClick={() => dispatch(fetchPostsAsync())}
        >
          Fetch Posts
        </button>
      </div>
    </section>
  );
};

export default HooksFetchPosts;

import HooksFetchPosts from "./components/HooksFetchPosts";
import HooksPosts from "./components/HooksPosts";

// ...

function App() {
  return (
    <main className="container">
      <HooksFetchPosts />
      <HooksPosts />
    </main>
  );
}

import { connect } from "react-redux";

import { decrementValue, incrementValue } from "../actions";
import Counter from "../components/counter";

const mapStateToProps = (state, ownProps) => {
  console.log("CounterContainer->mapStateToProps", { state, ownProps });
  return {
    count: state.counterReducer.count
  };
};

const mapDispatchToProps = {
  incrementValue,
  decrementValue
};

export default connect(mapStateToProps, mapDispatchToProps)(Counter);

class Counter extends Component {
  render() {
    console.log("Counter->props", this.props);
    const {
      //counterReducer: { count },
      count,
      incrementValue,
      decrementValue
    } = this.props;

import React from "react";
import { useDispatch, useSelector } from "react-redux";

import { decrementValue, incrementValue } from "../actions";

const HooksCounter = ({ prop1 }) => {
  const { count } = useSelector(state => {
    console.log("HooksCounter->useSelector", { state, prop1 });
    return {
      count: state.counterReducer.count
    };
  });
  const dispatch = useDispatch();
  return (
  // ...

import HooksCounter from "./components/HooksCounter";

//...

function App() {
  const prop1 = 123;
  return (
    <main className="container">
     <HooksCounter prop1={prop1} />
    </main>
  );
}

import React from "react";
import { useDispatch, useSelector } from "react-redux";

import { decrementValue, incrementValue } from "../actions";

const HooksCounter = ({ prop1 }) => {
  const { count } = useSelector(state => {
    console.log("HooksCounter->useSelector", { state, prop1 });
    return {
      count: state.counterReducer.count
    };
  });
  const dispatch = useDispatch();
  return (
    <section className="card mt-5">
      <div className="card-body text-center">
        <span className="badge m-2 badge-primary">{count}</span>
      </div>
      <div className="card-footer">
        <div className="d-flex justify-content-center align-items-center">
          <button
            className="btn btn-secondary btn-sm"
            onClick={() => dispatch(incrementValue())}
          >
            +
          </button>
          <button
            className="btn btn-secondary btn-sm m-2"
            onClick={() => dispatch(decrementValue())}
          >
            -
          </button>
          <button className="btn btn-danger btn-sm">Reset</button>
        </div>
      </div>
    </section>
  );
};

export default HooksCounter;

import React from "react";
import { shallowEqual, useSelector } from "react-redux";

import Post from "./Post";

const HooksPosts = () => {
  const { posts, loading, error } = useSelector(
    state => state.postsReducer,
    shallowEqual
  );
  console.log("render HooksPosts");
  return (
  // ...

These are the customer-reported issues addressed in 15.7.2:

• With 15.7, users installing an extension on the command line with a nested extension may see an error installing. This has been addressed in the 15.7.2 servicing release.
• Anaconda fails to uninstall during upgrade and issues warning (Error 87).
• The SSDT 15.6.0 Installer configuration registry key could not be opened..
• Editor performance Issues when editing JavaScript.
• The Code Coverage functionality in Visual Studio 2017 ignores async methods.
• Missing atls.lib in arm/arm64 after update.
• Test Explorer no longer greys out the previously run unit tests.
• Version 15.7.1 debugs .aspx App in a new Chrome instance even if JavaScript debugging is disabled.
• 15.7 compiler fails with Folly.
• ASP project keeps running after closing the web page.
• Chrome Debugger not working and shows an error message, however, the debugger buttons stay active. .
• Rename Python from Rename on the Refactor menu no longer works.
• Visual Studio Installer doesn't work correctly in low disk space conditions.
• Debugger links to browser when previously not set.
• Problems with template argument deduction for class templates.
• C++ constexpr string_view == fails to compile.
• A regression in Type Providers which use native resources (e.g., FSharp.Data.TypeProviders) has been fixed.
• You can now add files to F# ASP.NET Core projects from the UI.
• Listening to Microsoft-Extensions-Logging causes VS diagnostic events window to disconnect with an error message has been fixed in Service Fabric Tools. 

[Flags]
public enum Option
{
None = 0x00,
Option1 = 0x01,
Option2 = 0x02,
Option3 = 0x04,
Option4 = 0x08,
Option5 = 0x10,
Option6 = 0x20,
Option7 = 0x40,
Option8 = 0x80,
All = 0xFF
}

import 'rxjs/add/operator/map';

import { map } from 'rxjs/operators';

import { map, catchError, tap } from 'rxjs/operators';

import { Observable } from 'rxjs/Rx';

import { Observable } from 'rxjs/Observable';

import 'rxjs/add/observable/throw';

Observable.throw('error');

import { ErrorObservable } from 'rxjs/observable/ErrorObservable';

ErrorObservable.create('error');

import "rxjs/add/observable/timer";

const timerSource$ = Observable.timer(initialDelay);

import { timer } from 'rxjs/observable/timer';  

const timerSource$ = timer(initialDelay);

import { from} from 'rxjs/observable/from';
import { map, scan, filter } from 'rxjs/operators';

const source$ = range(1,10);

const sumOfSquaredOddNumbers$ = source$.pipe(
   filter(n => n % 2 !== 0), 
   map(n => n * n),
   scan((acc,s) => acc + s, 0)
);
sumOfSquaredOddNumbers$.subscribe(v => console.log(v));

/*** Output ****/ 
1
10
35
84
165

import { of } from 'rxjs/observable/of';
import { from } from 'rxjs/observable/from';
import { range } from 'rxjs/observable/range';

const source$ = of(1,2,3);
const rangeSource$ = range(0,5);

import { Observable } from 'rxjs/Observable';
import 'rxjs/add/operator/map';
import 'rxjs/add/operator/filter';

names = allUserData.
         map(user => user.name).
         filter(name => name);

import { Observable } from 'rxjs/Observable';
import { map, filter } from 'rxjs/operators';

names = allUserData.pipe(
   map(user => user.name),
   filter(name => name),
);