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Today in Top Angular News – Friday, March 1

Today in Top Angular News – Friday, March 1

Today’s topics include Angular, webdev, javascript, nodejs, Angular7, AngularJS, React, WebAssembly, and Automated. Special thanks to contributors @NetanelBasal, Netanel Basal, Juri Strumpflohner, ahmed-bouchefra, @Splaktar, Michael Prentice, @jinalshah999, jinal shah, Become An Author, Kiuwan, EdmundGorski, maria.a.perna.3, @natelapinski, Nate Lapinski, @alexmarket, Alex, JavaScript_Plow, and Ben Nadel, Eldon Broady, Get Into My Comments, You — Get Out Of My Dreams.


Angular Reactive Forms: Tips and Tricks – Netanel Basal

There might be cases when we don’t want to invalidate the form just because a single control is invalid. In this instance we can set the onlySelf property to true, which means that each change only affects the control itself alone, and not its parents. Preventing Infinite Loops
In the process of setting up our form controls, we might inadvertently cause infinite loops. That’s helpful, but sometimes we want to tell Angular that this control is disabled on the initialization face. Pay attention that we must also pass the value property; otherwise Angular assumes that we want the control’s value to be { disabled: true }. Continue reading


Creating Searchable Templates in Angular – Netanel Basal

One of my last assignments was to develop generic method to make components and templates searchable in our application. We’ll use this feature to register each searchable directive in our SearchableContainer component. Create the Searchable Directive
As stated before, we’re asking Angular to provide us with the SearchableContainer and register the current instance. Now, let’s go back to the search() method implementation:
When we receive a new search term, we need to loop over the searchable 
directives, check if we have a match and run the corresponding method accordingly. The highlight() method takes the searchable token and the current search term and sets the innerHTML of the host element after sanitizing it for security reasons. Continue reading


A step-by-step guide to integrating a third party widget with Angular

We’ll learn how to set up mapping between Angular input bindings and the widget’s configuration options and how to expose the widget’s API through an Angular component. In short, it defines:

Here’s a very basic configuration that demonstrates the usage of grid options:

Once the JavaScript data grid is initialized:

attaches the object with API methods to the that can be used to control the JavaScript data grid:

However, when ag-Grid is used as Angular component, we don’t instantiate the datagrid directly. The following example demonstrates how Angular wrapper grid is configured in a template using input bindings and output events:

Since Angular assigns an instance of the component to a template reference, which in this case is , the APIs exposed by is accessible through the component. We need to copy all configuration options from the component class properties defined as input bindings to this object. Since we need to pass a native DOM element to the data grid when it’s being instantiated, we grab the element in the component’s constructor:

Once the grid is initialized, we need to track changes to input bindings to update configuration options of the datagrid. Continue reading


Styling An Angular Application With Bootstrap

Let’s see how we can integrate Bootstrap CSS styles and JavaScript files with an Angular project generated using the Angular CLI, and how to use form controls and classes to create beautiful forms and how to style HTML tables using Table styles. Next, install Bootstrap 4 and jQuery from npm:

Finally, open the file and add the file paths of Bootstrap CSS and JS files as well as jQuery to the and arrays under the target:

Check out how to add Bootstrap to an Angular 6 project for options on how to integrate Bootstrap with Angular. After creating a project and adding Bootstrap 4, we’ll create an Angular service that will be used to provide some demo data to display in our application. Next, open the file and add:

Next, open the file and add:

Next, open the file and replace its contents with the following:

We’re creating an application shell by using the header and footer components which means that they will be present on every page of our application. You should see the following interface:

If you navigate to the Contacts page, you should see:

If you navigate to the “Create contact” page, you should see:

In this tutorial, we’ve seen how to create a simple Angular application with a Bootstrap interface. Continue reading


Guide
bazel
Code related to building Angular using the open source Bazel build system
benchpress
Code related to End-to-End Performance testing of Angular using benchmarking. Guide
common
Code related to common pipes (JSON, date, async, etc.), directives (*ngIf, *ngFor, ngStyle, ngPlural, etc.), location and path strategies, and internationalization (localization, date/number/currency formatting, etc.)
compiler-cli
Code related to the ngcc and ngtsc compiler Command Line Interfaces (CLIs)
compiler
Code related to the Angular compiler including Ahead of Time (AOT), Just In Time (JIT), internationalization, parsers (templates, expressions, CSS), the view compiler, and compiler utilities
core
Code related to Change Detection, Dependency Injection, renderers, the linker, sanitization, metadata, and the View
elements
Code related to packaging Angular components as Custom Elements. Guide
platform-*
Code related to specific platforms that Angular supports including Server Side Rendering (server), web browsers (browser, browser-dynamic), and Web Workers (webworker, webworker-dynamic)
router
Code related to the Angular Router. Contribution Guide
The Angular Contribution Guide covers a lot of topics including where to submit questions, where to submit bugs, how to submit feature requests, how to create pull requests, and how to join the live community chat for real-time help. Developer Guide
The Angular Developer Guide includes details about prerequisites, getting the source code, installing dependencies, building the Angular framework, and running tests locally. Continue reading


  • Now, the obvious question is what is Angular Material?

Infinite/Virtual Scrolling using Angular Material
Hello Readers,
In this article, we will be implementing infinite scrolling in our angular application. So, the next question arises that how to show those thousands of records in a single page? So, the first step is to create new app, install Angular Material into your app and run it. Earlier, to install angular material on your computer we had to go through tedious long steps. Continue reading


7 Tips to Optimize Your Angular App/Application

When application bootstrapped, it initially creates `ApplicationContext`(root) and fires `tick` method on root component, which starts running change detection on each component from top of the bottom of the tree. In the above diagram, you can see that on B component it ran change detection, after that it will run a `tick` method that eventually runs change detection from root component to the leaf components. And root component changes `Input` property of component `B`

As shown in the above diagram, it will only run change detection for component B and its descendant, since its Input property got to change. And whenever you want to fire change detection on a detached component, you have to call the `markForCheck` method on that component which will eventually mark that component path from root(top) component to detached component, and update bindings only for next change detection run. So when it comes to running change detection on the plucked tree, consider explicitly call `markForCheck` method, that will traverse tree up and mark the path till root component. Continue reading


14 tips for developing AngularJS applications – Kiuwan

An insight into some AngularJS concepts, such as $scopes, two-way data binding and directives, will bring us some important tips to keep in mind while developing AngularJS applications. Key features are two-way data binding, built-in dependency injection, templates written with HTML and facilities for unit testing of every component in the application. Keep scopes under control:

Two-way data binding in AngularJS is a cool feature. In order to improve your application performance:

AngularJS directives are great. To make your upgrading easier:

Last but not least, organize your code:

Stay tuned, soon you will have a set of new specific rules for AngularJS applications available in Kiuwan Code Analysis  These rules will help you to follow best practices and enjoy building great AngularJS applications. Continue reading


Angular Meetup – Improving Angular App Performance

Network with other IT professionals in the Tampa bay area who want to learn Angular or already love working with Angular and share tips and tricks to get the most out of your Angular apps! In this meetup, Alvaro Cruz will be presenting "Improving Angular App Performance":

Angular is a framework build with speed at its core, but as our applications grow in size and our functions do more intensive work, we may notice some performance degradation: the browser does not respond for a few seconds, or even worse it crashes. Let's explore the different ways we can fine-tuned change detection and other ways to write more performant applications. About Our Presenter: Alvaro Cruz

As a Software Architect at Raymond James one of my favorite projects is working on an Angular Component library for our internal and Financial Advisor facing applications to use. Love to spend time with my family, hiking (up north), playing soccer and basketball at least once a week, and reading JavaScript and UI framework related articles on medium to stay up to date. Continue reading


Static Site Generators: A Beginner’s Guide — SitePoint

A great option for you is to build your website using static site generators (SSG). On the other hand, a static site generator:

takes a different approach and generates all the pages of the website once when there’s actually changes to the site. React, Webpack, modern JS, CSS, etc. all ready for you to just start coding your site

Gatsby’s rich plugin ecosystem allows you to use any kind of data you prefer from one or more sources

Easy deployment and scalability, which is mainly due to the fact that Gatsby builds static pages, which don’t require complicated setups

Gatsby is a Progressive Web Apps (PWA) generator. To install VuePress globally, just run this command in your terminal:

npm install -g vuepress

Then, to create a markdown file, run:

echo '# Hello VuePress' README.md

To start writing, run:

vuepress dev

To build your site, run:

vuepress build

Here are some great features that VuePress has to offer:

Setting up your VuePress-based site is quick and you can write your content using Markdown

VuePress is built on Vue, which means that you can enjoy the web experience of Vue, Webpack, the possibility of using Vue components inside Markdown files and of developing custom themes with Vue

Fast loading experience: VuePress static sites are made of pre-rendered static HTML and run as a SPA once they’re loaded in the browser

Multilanguage support by default with i18n. With regard to stuff like great documentation, strong community and support, all of the static site generators I listed figure among the most popular, or rapidly gaining in popularity like VuePress. Continue reading

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