typescript typing objects code example

Example 1: define object properties typescript

interface ISomeObject {
  subPropertie1: string,
  subPropertie2: number,
}

interface IProperties {
  property1: string,
  property2: boolean,
  property3: number[],
  property4: ISomeObject,
  property5: ISomeObject[],
}

function (args:IProperties): void {		// Sample Usage
  console.log(args.property1);
}

Example 2: typing in typescript

var name: string = "Anna";
let notes: (number | string)[] = ["Get Food", 23, "Call the previous number when betting"];

Example 3: typescript obejct replace propertyies

const recievedKeys = Object.keys(receivedObject) as Array<keyof IEvent>
    for (const key of recievedKeys) {
      this.event = {
        ...this.event,
        [key]: receivedObject[key]
      }
    }