Modesto  Bailey

Modesto Bailey

1591305180

Angular Directives(ng if, ngFor, ngClass) & PIPES | Angular 9 for Beginners 2020

Learn Angular 9 Directives (ng-if, ngFor, ngClass) and pipes in Angular.

In the third video of Angular for Beginners tutorial series, you’re going to learn how to use some important Angular directives (ngIf, ngFor, ngClass) and pipes in Angular.

#angular #angular 9

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Buddha Community

Angular Directives(ng if, ngFor, ngClass) & PIPES | Angular 9 for Beginners 2020
Modesto  Bailey

Modesto Bailey

1591305180

Angular Directives(ng if, ngFor, ngClass) & PIPES | Angular 9 for Beginners 2020

Learn Angular 9 Directives (ng-if, ngFor, ngClass) and pipes in Angular.

In the third video of Angular for Beginners tutorial series, you’re going to learn how to use some important Angular directives (ngIf, ngFor, ngClass) and pipes in Angular.

#angular #angular 9

Clara  Gutmann

Clara Gutmann

1598731020

Angular NgFor Example | NgForOf Directive in Angular 9

Angular NgFor is a structural directive that renders the template for each item in the collection. The ngForOf is generally used in the shorthand form *ngFor. The core directive ngFor allows us to build data presentation lists and tables in our HTML templates. When we need to  display data in Angular, we use the ngFor directive.

Angular NgFor Example

NgFor is an inbuilt template directive that makes it easy to iterate over something like an array or an object and create a template for each item. You can also set local variables for the following exported values: index, first, last, even, and odd. the index will return the current loop index and the other values by providing a boolean indicating if the value is true or false.

Let’s see the Syntax of the** NgFor directive.**

<ng-template *ngFor="let item of items; index as i; trackBy: trackByFn">...</ng-template>

Let’s take an example of the ngFor directive in Angular.

#angular #angular 9 #angular ngfor

Brain  Crist

Brain Crist

1594753020

Citrix Bugs Allow Unauthenticated Code Injection, Data Theft

Multiple vulnerabilities in the Citrix Application Delivery Controller (ADC) and Gateway would allow code injection, information disclosure and denial of service, the networking vendor announced Tuesday. Four of the bugs are exploitable by an unauthenticated, remote attacker.

The Citrix products (formerly known as NetScaler ADC and Gateway) are used for application-aware traffic management and secure remote access, respectively, and are installed in at least 80,000 companies in 158 countries, according to a December assessment from Positive Technologies.

Other flaws announced Tuesday also affect Citrix SD-WAN WANOP appliances, models 4000-WO, 4100-WO, 5000-WO and 5100-WO.

Attacks on the management interface of the products could result in system compromise by an unauthenticated user on the management network; or system compromise through cross-site scripting (XSS). Attackers could also create a download link for the device which, if downloaded and then executed by an unauthenticated user on the management network, could result in the compromise of a local computer.

“Customers who have configured their systems in accordance with Citrix recommendations [i.e., to have this interface separated from the network and protected by a firewall] have significantly reduced their risk from attacks to the management interface,” according to the vendor.

Threat actors could also mount attacks on Virtual IPs (VIPs). VIPs, among other things, are used to provide users with a unique IP address for communicating with network resources for applications that do not allow multiple connections or users from the same IP address.

The VIP attacks include denial of service against either the Gateway or Authentication virtual servers by an unauthenticated user; or remote port scanning of the internal network by an authenticated Citrix Gateway user.

“Attackers can only discern whether a TLS connection is possible with the port and cannot communicate further with the end devices,” according to the critical Citrix advisory. “Customers who have not enabled either the Gateway or Authentication virtual servers are not at risk from attacks that are applicable to those servers. Other virtual servers e.g. load balancing and content switching virtual servers are not affected by these issues.”

A final vulnerability has been found in Citrix Gateway Plug-in for Linux that would allow a local logged-on user of a Linux system with that plug-in installed to elevate their privileges to an administrator account on that computer, the company said.

#vulnerabilities #adc #citrix #code injection #critical advisory #cve-2020-8187 #cve-2020-8190 #cve-2020-8191 #cve-2020-8193 #cve-2020-8194 #cve-2020-8195 #cve-2020-8196 #cve-2020-8197 #cve-2020-8198 #cve-2020-8199 #denial of service #gateway #information disclosure #patches #security advisory #security bugs

Clara  Gutmann

Clara Gutmann

1598697840

Angular NgClass Example | NgClass Directive In Angular 9

In this Angular NgClass Example, you will see how to apply CSS classes to the HTML element using the NgClass directive. If you are new to  Angular 9, then I have covered  Update Angular 9 CLI and  Angular 9 CRUD example. If you are working on  Angular 7 then, you should see  Angular 7 NgClass. The NgClass directive in the Angular Framework allows us to set the CSS class dynamically for a DOM element.

The NgClass directive behaves exactly as what ngClass used to do in AngularJS.

Angular NgClass Example

Angular NgClass directive allows you to apply CSS classes dynamically based on expression evaluation. We can use NgClass in Angular using [ngClass] selector, and NgClass offers three simple ways through which we can update the CSS classes in the DOM.

#angular #angular 7 #dom #ngclass #angularjs #html

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