bug: Input type number is not respected

Type: <span ionic-type>bug</span>

Ionic Version: <span ionic-version>2.x</span>

Platform: <span ionic-platform>all</span>

<span ionic-description>Steps to reproduce:

1. Create an ion-input with type="number"
2. Add [(ngModel)] and (ngModelChange) to get the Value of the input
3. Check the type of the value using typeOf(value)
4. Type in a number into the input => Type is always a string

Expected behavior: … => Type is a number.

See this plunk as an example: https://run.plnkr.co/plunks/GHBFad/</span>

<span is-issue-template></span>

[brandyscarney]

I confirmed this is still an issue with latest.

[dpsoft]

workaround:

Template:

 <ion-input 
    type="number" 
    [ngModel]="progress" 
    (ngModelChange)="progress = convertToNumber($event)">
  </ion-input>

Function:

public convertToNumber(event):number {  return +event; }

hope this helps.