Typescript Hints

TypescriptHints.ts

//#1: Creating members via constructor
class Car {
  constructor(public engine: string) {
  }
}

//#2: Structure of a typescript class

//Class
//-- Fields
//-- Constructors
//-- Properties
//-- Functions

//All class members are public per default.

//#3: Property Limitation
// Properties doesn't work in every browser.
// Alternative targeting ES3 or don't use properties.

//#4: Casting Types

//This fails.
var table : HTMLTableElement = document.createElemente('table');

//This succeeds
var table: HTMLTableElement = <HTMLTableElement>document.createElement('table');


//#5: params function parameter
myFunction(...elements: string[]) { 
    
}

//#6: optional members in an interface
interface IAutoOptions {
  engine: IEngine;
  basePrice: number;
  state: string;
  make?: string;
  model?: string;
  year?: number;
}