TypeScript Version: 2.1.1

Code

class PartialPolicySearchIten {
	public displayValue: string;
	public oriNumber: string;
	public parentName: string;
	public sysNumber: string;
	public systemCode: number;
	public systemName: string;
}

Expected behavior:

class PartialPolicySearchIten {
       constructor() {
        this.displayValue = undefined;
	this.oriNumber = undefined;
	this.parentName = undefined;
	this.sysNumber = undefined;
	this.systemCode = undefined;
	this. systemName = undefined;
       }
}

Actual behavior:
class PartialPolicySearchIten { }

The problem comes when using Reflection it can't find the properties. I would expected that the properties exists as i'm redefining them. Otherwise their very little point is declaring properties of a class.