Now you can upgrade any .NET application to the latest version of .NET inside of Visual Studio! We are happy to introduce it as a Visual Studio extension and will upgrade your .NET Framework or .NET Core web- and desktop apps. In this video, Olia shows you how to get the extension and start to update your projects to the latest version of NET in minutes.
This lesson covers the following topics:
An elevation of privilege vulnerability exists in Git for Visual Studio when it improperly parses configuration files. An attacker who successfully exploited the vulnerability could execute code in the context of another local user. To exploit the vulnerability, an authenticated attacker would need to modify Git configuration files on a system prior to a full installation of the application. The attacker would then need to convince another user on the system to execute specific Git commands. The update addresses the issue by changing the permissions required to edit configuration files.
In this article we are going to discuss how to insert, update and delete data into database using ASP.NET MVC 4.0. There is a Layout page and Data base script that we are going to use for this but we are not going to discuss much how to create a Layout page and database script here in detail.
I’ve been at ThoughtWorks for 12 years. Who would have imagined? Instead of writing about my reflections from the past year, I thought I would do something different and post twelve key learnings and observations looking back over my career. I have chosen twelve, not because there are only twelve, but because it fits well with the theme of twelve years.
In this post, I will show you how to use the .NET CLI tools on macOS to clean-up installed SDKs, runtimes, workloads, and NuGet caches.
defaultChecks() {
const author = { firstName: "Vahid", lastName: "N" };
console.log(author.lastname);
author.lastName.trimStart();
author.firstName.charCodeAt("1");
} 
> npm install -g tslint typescript
{
"compilerOptions": {
"strictNullChecks": true
}
} getSessionItem(key: string): any {
const data = window.sessionStorage.getItem(key);
return JSON.parse(data);
} [ts] Argument of type 'string | null' is not assignable to parameter of type 'string'. Type 'null' is not assignable to type 'string'. const data: string | null
getSessionItem(key: string): any {
const data = window.sessionStorage.getItem(key);
if (data) {
return JSON.parse(data);
} else {
return null;
}
} noImplicitReturns(a: number) {
if (a > 10) {
return a;
}
// No return in this branch
} {
"compilerOptions": {
"noImplicitReturns": true
}
} [ts] Not all code paths return a value.
{
"compilerOptions": {
"allowUnreachableCode": false
}
} allowUnreachableCode() {
if (false) {
console.log("Unreachable code");
}
const a = 1;
if (a > 0) {
return 10; // reachable code
}
return 0;
console.log("Unreachable code");
} unusedLocals() {
const a = "foo"; // Error: 'a' is declared but its value is never read
return "bar";
}
unusedParameters(n: number) {
n = 0; // Never read
} {
"compilerOptions": {
"noUnusedLocals": true,
"noUnusedParameters": true
}
} [ts] 'a' is declared but its value is never read. [ts] 'n' is declared but its value is never read.
excessPropertyForObjectLiterals() {
let x: { foo: number };
x = { foo: 1, baz: 2 }; // Error, excess property 'baz'
let y: { foo: number, bar?: number };
y = { foo: 1, baz: 2 }; // Error, excess property 'baz'
} {
"compilerOptions": {
"suppressExcessPropertyErrors": false
}
} [ts]
Type '{ foo: number; baz: number; }' is not assignable to type '{ foo: number; }'.
Object literal may only specify known properties, and 'baz' does not exist in type '{ foo: number; }'.
(property) baz: number fallthroughCasesInSwitchStatement(a: number) {
switch (a) {
case 0:
break;
case 1:
a += 1;
case 2:
a += 2;
break;
}
} {
"compilerOptions": {
"noFallthroughCasesInSwitch": true
}
} indexingObjectsLackingIndexSignatures() {
const x = { a: 0 };
x["a"] = 1; // ok
x["b"] = 1; // Error, type '{ a: number; }' has no index signature.
} {
"compilerOptions": {
"suppressImplicitAnyIndexErrors": false
}
} [ts] Element implicitly has an 'any' type because type '{ a: number; }' has no index signature. {
"compilerOptions": {
"noImplicitAny": true
}
} noImplicitAny(args) { // Error: Parameter 'args' implicitly has an 'any' type.
console.log(args);
} noImplicitAnyArgs(args: string[]) { // ok with the type information
console.log(args);
} PostgreSQL, or Postgres, is a relational database management system that provides an implementation of the SQL querying language. It’s standards-compliant and has many advanced features like reliable transactions and concurrency without read locks.
This guide demonstrates how to quickly get Postgres up and running on an Ubuntu 20.04 server, from installing PostgreSQL to setting up a new user and database. If you’d prefer a more in-depth tutorial on installing and managing a PostgreSQL database, see How To Install and Use PostgreSQL on Ubuntu 20.04.
