how to declare object type in typescript 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: typescript object type

//is not strict mode
let endedCoord: {x: number, y: number} = {
  	x: -1,
  	y: -1,
}