How to install and initialize vue js?

INSTALLING VUE JS

1. Using Scripts
1. Development Scripts
2. Production Scripts
2. CLI
1. npm
1. npm install --global @vue/cli
2. yarn
1.  yarn global add @vue/cli

How to create database context class and adding tables to it? ASP.NET Core 6

CODE:

namespace projectnamespace;

public class Northwind : DbContext { 

var DataProvider="SQLite";

 

 protected override void OnConfiguring( DbContextOptionsBuilder     optionsBuilder) { 

 if (DatabaseProvider == "SQLite") { 

     string path = Path.Combine( Environment.CurrentDirectory, "Northwind.db"); 

 WriteLine($"Using {path} database file."); 

 optionsBuilder.UseSqlite($"Filename={path}"); 

 } else { 

     string connection = "Data Source=.;" + "Initial Catalog=Northwind;" + "Integrated Security=true;" + "MultipleActiveResultSets=true;";

     optionsBuilder.UseSqlServer(connection);

 } 

  public DbSet? Table1{ get; set; } 

  public DbSet? Table2{ get; set; }

}

ASP.NET6 command to scafold modules using an existing database

NOTE : Make sure Microsoft.EntityFrameworkCore.Design package should be added to your project.

dotnet ef dbcontext scaffold "Filename=dbname.db" Microsoft. EntityFrameworkCore.Sqlite --table tablename --table tablename --outputdir Foldername --namespace Namespace --data-annotations --context Dbcontext

Note the following:

• The command action: dbcontext scaffold

• The connection string: "Filename=Northwind.db" 

• The database provider: Microsoft.EntityFrameworkCore.Sqlite 

• The tables to generate models for: --table Categories --table Products 

• The output folder: --output-dir AutoGenModels 

• The namespace: --namespace WorkingWithEFCore.AutoGen 

• To use data annotations as well as the Fluent API: --data-annotations 

• To rename the context from [database_name]Context: --context Northwind

asp.net core connection string for all databases in detail.

SQLITE

To make an SQLite database connection string, we just need to know the databse filename, set using the paramenter Filename.

Steps :

---

SQL Server

To connect to an SQL Server database, we need to know all these pieces of informations given.

• Server name
• Database name
• Security informations such as username & password or if we pass the currently logged-on user's credentials automatically.
  We specify this information in a connection string

Steps :

How to use vue with dotnet6 ?

 Follow these steps to use Vue with asp.net core.

1. Go To- https://dotnetnew.azurewebsites.net/

2. Search for Vue and select one template

3. Click on- go to project

4. Clone or download the repository

5. Run the command.

JavaScript Functions as JavaScript Variables

In Javascript instead of declaring and executing a function in two different steps.

for example

step 1 - 

function add(a,b){return a+b;}

step 2-

add(3,4);

result 7

Javascript provides an approach to declare and execute the function immediately. Which is known as IIFE(Immediately Invoked Function Expression)

Example:

(

function add(x,y){

alert(x+y);

})();

Introduction To Mobile And Mobile Programming.

Introduction to mobile programming.