Angular 2 is much simpler than its previous version. The directive is one of the major points which is now easier to create and maintain. In the angular previous version, they are very difficult to create and maintain so many people avoid them using. But angular2 makes it easy and more readable. In angular 2 directives provide more features and are more flexible as compared to Angular 1.x > in Agular 2 directives provides simplicity and make code maintainable and readable for the developer. Also, the code is independent.

In Angular 2 we have three types of the directive which are described below:

It modifies the behavior or appearance of the HTML element. Some of the built-in directives available are ngClass, style. This directive modifies the DOM element. Below is an example to show the syntax and working.

Component,Input,Output,EventEmitter } from '@angular/core';

name:String = 'This is directive demo to modify the behaior and apperence of element.';

{techName:"JAVA", experienceLevel:"3 Years"},

{techName:"Spring Boot", experienceLevel:"2 Years"},

{techName:"Microservices", experienceLevel:"2 Months"}

<h3>I am working on these technologies</h3>

<tr><th>Technology</th><th>Experiences</th></tr>

<th>{{data.techName}}</th><th>{{data.experienceLevel}}</th>

font-family: Cambria, Cochin, Georgia, Times, Times New Roman, serif;

This Directive is used to change the structure of the element. It alters the DOM element, by using this we can add, delete and replace the element with a new element. It modifies the DOM layout.

Structural Directive includes ngIf, ngFor, and switch to change the layout of the DOM element.

import { Component,Input,Output,EventEmitter } from '@angular/core';

name:String = 'This is directive example';

In this blog, we will discuss Angular 2 Directives

Angular 2 Directives

Angular 7 was one of the main releases in angular because it came with a whole new package deal of exciting capabilities, upgrades in performance & blunders managing. It's been the most awaited release with the aid of numerous companies growing web apps. This model improves changed into in particular targeted at the ivy venture which rewrote the compiler and runtime code to make angular a miles better framework

Let us discuss the features of Angular 7 in detail.

There has been trouble observed by way of google’s angular improvement group where undesirable document replicate-metadata became added in production as properly while ideally that is wished only in the case of improvement. Because of this, the older versions of angular have been slower than those with angular 7. The problem became constant by routinely eliminating this file from the polyfill.Ts record and with the aid of including this record only at some point of the construct step. This way Angular 7 is said to have better and green overall performance.

As the call says, with angular 7 the angular CLI isn't always only a commonplace line interface but additionally activates the developer to get diverse inputs along with subject matters to use, routing, and many others. Angular 7 is upgraded to use CLI model 7. Zero.2. That is very useful when builders try and run commands like ng add @angular/fabric, ng new, and they are precipitated with questions to get the exact material downloaded based on the requirement.

Angular 7 got here up with a characteristic of the latest compiler, this new compiler in angular is known as angular compatibility compiler. The angular compatibility compiler has the functionality to run in eight phased rotations the usage of beforehand of time compilation. Angular compatibility compiler ngcc device converts the node_module compiled with the non-ivy compiler to ivy compatible format. With this approach, Angular 7 applications can achieve a huge reduction in bundle size (up to 95-99%)

Providing Angular 7 developers with Drag & Drop Interface to easily manage and handle lists of elements. These new features will allow developers to use Component Dev Kit CDK with automatic rendering and re rending of Items/Lists of elements. This feature also supports custom drag options, free dragging, animations, placeholders, previews, etc. All this is achieved with the CDK Drag Drop feature

Another important feature and enhancement with angular 7 are that it provides Backward compatibility with node version 10 which has other more ads and benefits. Also along with this angular 7 will continue to support Node version 8 as earlier

Error Handling is much more improved and proficient with Angular 7

Virtual scrolling is something that is an add-on to the present scrolling impact. As we all recognize that older variations of angular additionally had this selection of scrolling but with angular 7 you now not handiest get scrolling function however also digital scrolling. Digital scrolling comes into the photograph whilst there is a large list of elements and the developer desires to load and sell off the information from the dom primarily based on the visibility of the statistics in dom. Accordingly, digital scrolling will increase the utility performance by permitting the height of a utility container to be the same as the peak of the final statistics which isn't yet rendered. The usage of digital scrolling only seen objects in view is rendered, which provides a quicker end-person enjoy.

The angular fabric has additionally been updated with a few minor updates with the angular 7 model release. The features with have been updated with angular material as well as thing dev kit are refresh feature, dynamic loading, and unloading of information, virtual scrolling effect, a characteristic of drag and drop with CDK, and lots of more were added with angular 7 release

Angular 7 came up with a new feature to manage the Bundle Limit of an Angular application. Earlier versions of Angular had the Bundle Limit set to default and did not have update ability. As of now with the new Angular 7 release, the Budget Limit of their Bundle Size can range from a Lower limit to 2MB and an Upper limit of 5MB. Changing this setting as per the developer requirement is possible now. It is important to note that whenever an application reaches on or above the Upper Budget limit of 5MB, then the Application will throw an error. This feature also improves the performance of the Angular Application

Angular 7 came up with Support for a lot of Higher upgraded dependencies.

TypeScript 3.1 – The version of Typescript supported in Angular has been updated from 2.7 to 3.1 and also is mandatory to use this version when your application is using Angular 7

RxJs 6.3 – The latest and exciting features by RxJs can now be used with Angular 7

Also along with this Angular Material and Angular Core modules have been updated.

In this blog, we will discuss Angular 7 Features

Angular 7 Features

Angular 2 is an open-supply framework that has been built over javascript. It has been especially used for growing the front-quit web packages. It's miles the successor of AngularJs. It's miles written in typescript. It is evolved using google. Angular 2 is built on modern javascript which uses es6. Angular 2 has higher event handling abilities, powerful templates, better assistance for mobile devices and computer web packages as well. It is also compatible with mobile devices and throughout all systems like home windows, mac, and Linux.

Commands and Content on Angular 2 Cheat Sheet

Angular 2 cheat sheet has an extensive library, scalable, extendable, interactive, and contains many in-built methods to compute common operations. There is the different syntax for templates, modules, Built-in directives, forms, and other configurations available as below:

modules:– The different Ngmodule directives are:

There are other directives and component change detection and lifecycle hooks available which can implement as class methods are below:

Free Tips and Tricks of using Angular 2 Cheat Sheet Commands

In Angular2 cheat sheet, platformBrowserDynamic ().bootstrapModule (AppModule); help in bootstrapping the application, using the root can component from the specified.

In Angular2, bootstrap: [MyAppComponent] will list the components to bootstrap when this module is bootstrapped.

<section *ngIf=” show section”> this is a built-in directive in angualr2 to remove or recreate a portion of the Dom tree based on an expression.

<li *ngFor=” let item of the list”> it turns the list element and its content into a template and it is being used to instantiate a view for each item in the list.

<div [ngSwitch]=“conditionExpression”> </div> this directive is being used for selecting the templates based on the expression value or in simple words like switch case in oops.

<div [ngStyle]=”{‘property’: ‘value’}”>, <div [ngStyle]=”dynamicStyles()”> these directives allow you to assign styles to an HTML element using CSS and this CSS can be directly accessible.

<div [ngClass]=”{‘active’: isActive, ‘disabled’: isDisabled}”> this directive binds the CSS classes on the element to trusted map values.

<input [(ngModel)]=” Name”> this directive provides the two-way binding, parsing, and validation for form controls.

selector: ‘.cool-button: not(a)’ this is a directive configuration that specifies the CSS selector that identifies this directive in the template. It does not support a parent-child selector.

providers: [MyService, { provide: … }] it provides the list of dependency injection providers for directives and children.

{ provide: MyService, useless: MyMockService } it will set or override the provider for service to the class.

{ provide: My Value, use Value: 4 } it will set or override the provider value to 4

Today in this blog, we will discuss Angular 2 Cheat Sheet

Angular 2 Cheat Sheet

By way of the use of angular fabric, we can modify the color of aspect and pick the coloration we need, for this material offer us topics using which we will style our components this make use of google fabric design. It offers us palettes it represents the gathering of color and each price internal this series is called hue. To become aware of the numbers from the palettes, it's far related to one specific number, this quantity can be used to coloration the aspect with the range chosen from the palettes. In cloth, we will use one selector to coloration the history of the element, which we can see within the coming part of the thing, also how we can make use of palettes and fabric design to put in force and color our element in element.

In this section we will have closer look at the syntax which can be used to color our component in Angular using the material, let’s get started with the basic syntax understanding see below;

<h1 md-colors="{backgroundColor:'color'}">your label</h1>

As you can see in the above syntax we are making use of ‘MD-colors’ which can be used to color the background of the component. we can specify the color we want either from the Palettes or directly here. In the coming section, we will see how we can change the color of components using material color in detail for better understanding and clarity.

As we have seen material design provides us with Palette to choose the color which helps us to design and style our component by just specifying the color we want. They have also come up with the color picker tool which all the numbers and codes which we can use to color our component. Below find the URL which helps you too choose the correct color and help with the color number as well;

You can choose the color from the below link which contain the tool for color picker:

URL: https://material.io/design/color/the-color-system.html#color-theme-creation

By using material color we can color our brand or component they provide us primary and secondary color to our, which we can choose to color our component in material or angular application. We have three types see below;

Now we will have closer look at the syntax of using the material, color inside the HTML component let’s get started;

<button md-colors="{backgroundColor:'green'}" md-justified class="line">Basic</button>

In angular material palette is represented as the SAAS map, which can be created using the below piece of code and you can change it as per your need;

Below is the sample example using material color and the color picker provided by them, we can pick any color and color component as we want, follow below code to changes in the component color with index.html has to be same as below to import all the js files.

.controller('MydemoColorController', function ($scope) {

// you can wirte your logic as per requrenemnt ..//

<md-content class="md-padding" layout-xs="column" layout="row">

<h1 md-colors="{backgroundColor:'lime-300'}">Demo using material color !!</h1>

<button md-colors="{backgroundColor:'red'}">Three</button>

<button md-colors="{backgroundColor:'Teal-100'}">Seven</button>

In this blog, we will discuss Angular material color

Angular Material Color

Angular material also provides us with one of the predominant matters that are a card, it is used to expose our textual content, pictures, snapshots on the card so essentially, it's miles used to reveal the content material within the container which makes it more presentable to the user. Material has in construct a library that can be used to build the cardboard in our software. To use a card from the material library, we require to make the adjustments and some configurations to the utility then we can use this in our application to reveal our images, photos, and text internal. Also, we will act on it. Within the coming phase of the education, we can have study the implantation, and configuration in detail for higher know-how.

As we know that to use this inside the application we have to make configurations and then use the inbuilt tags and directive provided by the material library, let’s take a closer look at it for better understanding see below;

In angular cloth we've got a card library or module we can say which permit us to create the cardboard for us, internal this we can area our content material as in line with the want, also in this section, we will have closer observe the configurations that we need to make to make this painting inner our application. Let’ get created for better understanding and clarity,

MatCardModule: This is the primary module for cards in the fabric library, we must have this module located or gift in the application to cart the cardboard, else it'll supply us with blunders. First, we will import this in our root module or any baby module in which we want to use this. For reference please find the below code to use this in your application see below;

import {MatCardModule} from '@angular/material/card';

As you can see from the above line of code, we are trying to use the ‘MatCardModule’, this module provide us various option to design our card with different component let’s have a closer look at each of them in detail see below;

mat-card-title: This tag is used to provide the title for the card.

mat-card-subtitle: This tag is used to provide the subtitle for the card.

mat-card-content: This tag is used to provide the content for the card.

mat-card-actions: This tag is used to provide the action on the card.

mat-card-footer: This tag is used to provide the footer for the card.

mat-card: It is the selector which is used to create the card using material after importing the above statement into the root file we can use this to show our card on the UI.

Just to make sure try one command which is mentioned below to install all the required library into our project,

Now you can test and run your project by typing the simple command which is mentioned below. This is just to make sure that we are on the right track and our project has been created without any errors or bugs inside it.

go on browser and try to run the application with the below URL :

By default angular project runs on port 4200, you can change it as per your need if required.

Now everything is set we have our angular project now  we will add the material library to our project just by running the below command on the command prompt;

<h5><u><i>Demo for card using Angular material</i></u></h5>

<mat-card-subtitle>Online education provider</mat-card-subtitle>

<button mat-stroked-button color="accent">SHARE</button>

<span class="version-info">Current build: 12.1.1</span>

background-image: url('https://lh5.googleusercontent.com/p/AF1QipN4k7WvGz9Dqg7xEssSjMpCLjkOPwOQbFDUl5sj=w203-h201-k-no');

Today in this blog, we will discuss Angular material card

Angular material card

Angular material offers us a progress bar that allows us to hold the song of the activity, which means it tells the development of that specific pastime. We can fill the bar with a few colors to song the pastime of the project. The angular cloth makes it extra appealing and user-pleasant using adding the default styling and designing to the development bar. Additionally, we can use this and put in force the usage of the in-construct module and directive provided by the cloth library. To use this, we can make some configurations to the angular utility which we can see in elements in the coming phase for higher information and clarity.

In this section we will have closer look at the syntax for this, we used the directive provided by the angular material itself so let’s get started in details

<mat-progress-bar mode="your_mode" value="your_value"></mat-progress-bar>

How to Create Progress Bar in Angular Material?

As of now we already realize that via the use of the angular fabric progress bar we can without problems specify the progress of the undertaking or hobby to the user. This facilitates the consumer to specify how tons it will take the task to finish also, it makes the ready system for the person a little bit interactive, and in addition, they have a few ideas that the manner is taking time to finish and it's far happening within the background. Within the fabric library, we've got in build module which enables us to create this development bar without problems, so allow’s get commenced;

This module is provided by the material library which helps to create the progress bar easily and quickly. We need to import this in our root module or any child module in which we want to create the progress bar. For reference please find the code below;

import {MatProgressBarModule} from '@angular/material/progress-bar';

Now we have this selector that is ‘mat-progress-bar’ why the use of this tag on HTML or Template we can render the progress bar, as per our need. Belo see sample piece of code to use it, Before this let’s take a closer look at the different types of mode for the progress bar in detail;

Now let’s get started with the steps that need to be taken to step up our angular material project initially for beginners see below;

First, install the Angular CLI which enables us to download the required packages and library for our project. You can download it by typing the below command on your command make sure you have already installed node see below;

Now in this step, we will try to create the new angular project from scratch, this project will not be a material project that we have to add later by installing the material dependency inside our project. so just execute the below command on your Command Prompt and press enter see below;

Examples of angular material progress bars are given below:

import {ThemePalette} from '@angular/material/core';

import {ProgressBarMode} from '@angular/material/progress-bar';

templateUrl: 'demo.progress.component.html',

styleUrls: ['demo.progress.component.css'],

<h3><u><i>Progress bar demo using angular material library !!</i></u></h3>

<label class="example-margin">Move Progress:</label>

<mat-slider class="example-margin" [(ngModel)]="myvalue"></mat-slider>

<label class="example-margin">Buffer Progress:</label>

<mat-slider class="example-margin" [(ngModel)]="mybufferValue"></mat-slider>

<h2><u><i>Progress Result : </i></u></h2>

In this blog, we will discuss Angular Material Progress Bar.

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