During the last Build conference, Microsoft has announced the next
version of Visual Studio with C# 7.3 support. This is yet another minor
language update with some quite interesting features. The main change
was related to generics, starting from C# 7.3 there 3 more constraints: unmanaged, System.Enum and System.Delegate.
<!--no binding --> <input name="firstname" ngModel>
<!--one way binding --> <input name="firstname" [ngModel]="firstName">
<!--two way binding --> <input name="firstname" [ngModel]="firstName" (ngModelChange)="firstName=$event">
<!--two way binding --> <input name="firstname" [(ngModel)]="firstName">
> ng g cl Employee/Employee
installing class create src\app\Employee\employee.ts
export class Employee {
constructor(
public firstName: string,
public lastName: string,
public isFullTime: boolean,
public paymentType: string,
public primaryLanguage: string
) {}
} import { Employee } from "app/employee/employee";
export class EmployeeRegisterComponent implements OnInit {
languages = ["Persian", "English", "Spanish", "Other"];
model = new Employee("Vahid", "N", true, "FullTime", "Persian"); <form #form="ngForm" novalidate>
<div class="form-group">
<label>First Name</label>
<input type="text" class="form-control" name="firstName" [(ngModel)]="model.firstName">
</div>
<div class="form-group">
<label>Last Name</label>
<input type="text" class="form-control" name="lastName" [(ngModel)]="model.lastName">
</div> <button class="btn btn-primary" type="submit">Ok</button>
</form>
Model: {{ model | json }}
<br> Angular: {{ form.value | json }}
<br> form.pristine: {{ form.pristine }} 
<div class="checkbox">
<label>
<input type="checkbox" name="is-full-time"
[(ngModel)]="model.isFullTime"> Full Time Employee
</label>
</div> <label>Payment Type</label>
<div class="radio">
<label>
<input type="radio" name="paymentType" value="FullTime" checked
[(ngModel)]="model.paymentType">
Full Time
</label>
</div>
<div class="radio">
<label>
<input type="radio" name="paymentType" value="PartTime"
[(ngModel)]="model.paymentType">
Part Time
</label>
</div> <div class="form-group">
<label>Primary Language</label>
<select class="form-control" name="primaryLanguage" [(ngModel)]="model.primaryLanguage">
<option *ngFor="let lang of languages">
{{ lang }}
</option>
</select>
</div> 
<div class="form-group">
<label>First Name</label>
<input type="text" class="form-control" name="firstName"
[ngModel]="model.firstName"
(ngModelChange)="firstNameToUpperCase($event)">
</div> firstNameToUpperCase(value: string) {
if (value.length > 0)
this.model.firstName = value.charAt(0).toUpperCase() + value.slice(1);
else
this.model.firstName = value;
} There’s a ton of small bug fixes in this release, quite a few enhancements and a few larger new features. Configuration performance went up quite a bit, and I’ve laid the groundwork to make in-memory mapping a lot faster in the future. LINQ projection has gotten to the point where you can do anything that the major query providers support.
envFile option on Windows
System.InvalidOperationExceptionWhen called from 'VisitMemberInit', rewriting a node of type 'System.Linq.Expressions.NewExpression' must return a non-null value of the same type. Alternatively, override 'VisitMemberInit' and change it to not visit children of this type.
protected override Expression VisitMemberInit(MemberInitExpression node)
{
if (node.NewExpression.NodeType == ExpressionType.New)
return node;
return base.VisitMemberInit(node);
}These are the customer-reported issues addressed in 15.7.3:
Fast timer plugin for countdown and count forward Demo
With this plugin you can easily put a timer on your site, it works both ways. You can use two version, one version is the version for modern browsers with the standards of the ES2017 and the version for old browsers with ES2015 standards. Using the config you can change the tags as letters and numbers, you can also change the text output next to the numbers.
JS Is Weird
JavaScript is a great programming language, but thanks to the fact that its initial release was built in only ten days back in 1995, coupled with the fact that JS is backward-compatible, it's also a bit weird. It doesn't always behave the way you might think. In this quiz, you'll be shown 25 quirky expressions and will have to guess the output. Even if you're a JS developer, most of this syntax is probably, and hopefully, not something you use in your daily life.
Learn how you can save time by creating your own reusable .NET Core templates in just a few steps.
Do you ever develop prototypes, or starter projects/accelerators, that you’d like to use again in the future? A good way to do that is by creating custom templates for dotnet. Once completed, anytime you want to create a new project of that type in the future, you can key in “dotnet new ” and you’re off, complete with correct namespaces. You can even do conditional checks, or variable replacements.
