Angular Form Validation

In the last post I introduced angular 2’s model driven form approach. In this post I’m going to go through how to implement validation rules on a model driven form …

Standard validators

At the moment there seem to be 3 standard validators which pretty much do what they say on the tin:

  • Validators.required
  • Validators.minLength
  • Validators.maxLength

Here’s some component code that references the standard required and minLength validators:

export class LoginComponent {
  loginForm: ControlGroup;
  constructor(builder: FormBuilder) {
    this.loginForm = builder.group({
      userName: ["", Validators.required],
      password: ["", Validators.minLength(6)]
    });
  }
}

Multiple validators

You can use Validators.compose to specify multiple validators for a field:

export class LoginComponent {
  loginForm: ControlGroup;
  constructor(builder: FormBuilder) {
    this.loginForm = builder.group({
      userName: ["", Validators.required],
      password: [
        "",
        Validators.compose([Validators.minLength(6), Validators.maxLength(12)])
      ]
    });
  }
}

#angular #standard validators #multiple validators #custom validation

What is GEEK

Buddha Community

Angular Form Validation

Yogi Gurjar

1600308055

Laravel 8 Form Validation Tutorial

Laravel 8 form validation example. In this tutorial, i will show you how to submit form with validation in laravel 8.

And you will learn how to store form data in laravel 8. Also validate form data before store to db.

How to Validate Form Data in Laravel 8

  1. Step 1 – Install Laravel 8 Application
  2. Step 2 – Configuring Database using Env File
  3. Step 3 – Create Model & Migration File For Form
  4. Step 4 – Create Routes
  5. Step 5 – Creating Controller
  6. Step 6 – Create Blade File For Form
  7. Step 7 – Start Development Server
  8. Step 8 – Run Laravel 8 Form Validation App On Browser

https://laratutorials.com/laravel-8-form-validation-example-tutorial/

#laravel 8 form validation #laravel 8 form validation tutorial #laravel 8 form validation - google search #how to validate form data in laravel 8 #form validation in laravel 8

I am Developer

1608866530

Angular 11 Reactive Forms Validation Tutorial

Reactive form validation in Angular 11 app. In this tutorial, i will show you how to use reactive form validation in angular 11 app.

As well as, and you will learn how use reactive form validation in angular 11. And also use reactive form with formGroup for validation in angular 11 app.

Reactive Form Validation In Angular 11
Step 1 – Create New Angular App
Step 2 – Import Form Module
Step 3 – Add Code on View File
Step 4 – Use Component ts File
Step 5 – Start Angular App

https://www.tutsmake.com/angular-11-reactive-forms-validation-tutorial-example/

#reactive form validation in angular 11 #angular 11/10/9/8/7 reactive forms validation example #angular 11 form validation example

Laravel 8 Form Validation Example

In this tutorial we will see laravel 8 form validation example, form validation in laravel is very common functionalities and it is use in each and every website to validate form field.

Here, We will use has function in session to check error message in laravel 8. using this example you can check simple form validation as well as you can create your own custom validation in laravel 8.

Laravel 8 Form Validation Example

https://websolutionstuff.com/post/laravel-8-form-validation-example


Read Also : Laravel 8 CRUD Operation Example

https://websolutionstuff.com/post/laravel-8-crud-operation-example

#laravel 8 form validation example #form validation #how to validate form in laravel 8 #form validation in laravel #laravel #laravel8

Christa  Stehr

Christa Stehr

1598940617

Install Angular - Angular Environment Setup Process

Angular is a TypeScript based framework that works in synchronization with HTML, CSS, and JavaScript. To work with angular, domain knowledge of these 3 is required.

  1. Installing Node.js and npm
  2. Installing Angular CLI
  3. Creating workspace
  4. Deploying your First App

In this article, you will get to know about the Angular Environment setup process. After reading this article, you will be able to install, setup, create, and launch your own application in Angular. So let’s start!!!

Angular environment setup

Install Angular in Easy Steps

For Installing Angular on your Machine, there are 2 prerequisites:

  • Node.js
  • npm Package Manager
Node.js

First you need to have Node.js installed as Angular require current, active LTS or maintenance LTS version of Node.js

Download and Install Node.js version suitable for your machine’s operating system.

Npm Package Manager

Angular, Angular CLI and Angular applications are dependent on npm packages. By installing Node.js, you have automatically installed the npm Package manager which will be the base for installing angular in your system. To check the presence of npm client and Angular version check of npm client, run this command:

  1. npm -v

Installing Angular CLI

  • Open Terminal/Command Prompt
  • To install Angular CLI, run the below command:
  1. npm install -g @angular/cli

installing angular CLI

· After executing the command, Angular CLI will get installed within some time. You can check it using the following command

  1. ng --version

Workspace Creation

Now as your Angular CLI is installed, you need to create a workspace to work upon your application. Methods for it are:

  • Using CLI
  • Using Visual Studio Code
1. Using CLI

To create a workspace:

  • Navigate to the desired directory where you want to create your workspace using cd command in the Terminal/Command prompt
  • Then in the directory write this command on your terminal and provide the name of the app which you want to create. In my case I have mentioned DataFlair:
  1. Ng new YourAppName

create angular workspace

  • After running this command, it will prompt you to select from various options about the CSS and other functionalities.

angular CSS options

  • To leave everything to default, simply press the Enter or the Return key.

angular setup

#angular tutorials #angular cli install #angular environment setup #angular version check #download angular #install angular #install angular cli

Angular Form Validation

In the last post I introduced angular 2’s model driven form approach. In this post I’m going to go through how to implement validation rules on a model driven form …

Standard validators

At the moment there seem to be 3 standard validators which pretty much do what they say on the tin:

  • Validators.required
  • Validators.minLength
  • Validators.maxLength

Here’s some component code that references the standard required and minLength validators:

export class LoginComponent {
  loginForm: ControlGroup;
  constructor(builder: FormBuilder) {
    this.loginForm = builder.group({
      userName: ["", Validators.required],
      password: ["", Validators.minLength(6)]
    });
  }
}

Multiple validators

You can use Validators.compose to specify multiple validators for a field:

export class LoginComponent {
  loginForm: ControlGroup;
  constructor(builder: FormBuilder) {
    this.loginForm = builder.group({
      userName: ["", Validators.required],
      password: [
        "",
        Validators.compose([Validators.minLength(6), Validators.maxLength(12)])
      ]
    });
  }
}

#angular #standard validators #multiple validators #custom validation