Trouble with Typescript in VSCode made easy

Setting up a VSCode environment for working with TypeScript v2.03 has been challenging.

Beginning with a simple vanilla javascript snippet that can be tested in node via the integrated terminal.

function Person() {
    this.name = "";
}

Person.prototype.age = 0;

let me = new Person();

The code compiles fine on Typescript Playground website without any complaints.

However, creating a new file in VSCode results in editor complaints:

https://i.sstatic.net/D176X.png

Running webpack with the ts-loader plugin triggers an error: https://i.sstatic.net/w3fg8.png

Compiling using 'tsc src/test.ts' does not produce any complaints.

Important questions:

  1. Is my code incorrect or is the complaint ignorable?
  2. Is there a way to stop VSCode from displaying this complaint?
typescriptvisual-studio-codetsc

Answer №1

One of the clear advantages of TypeScript compared to JavaScript is its use of explicitly defined types. For example, a more structured approach to configuring a Person object would involve defining it as a class. This approach enhances code quality by limiting assignments only to the specified members of the Person type.

class Person {
    name: string;
    age: number;

    constructor(){
      this.name = "";
    }
}

let me = new Person();
// Assigning values only to known members of the type Person
me.age = 21;

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