javascript - TypeError: self.parent.parent.context.parseInt is not a function - Stack Overflow

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I'm trying to assign height to a img using ngStyle and for that I'm calculating height with some Math operation as follows:

<div [ngSwitch]="tbNm?tbNm:'itm0'">
    <ion-list *ngFor="let vl of scrnshot;let ind=index">
      <img *ngSwitchCase="'itm'+ind" alt="Akhilesh" [ngStyle]="{'height':(parseInt(vl.names[0].hitWid.bdHt+(websitTyp(vl._id.origin)?100:0)))+'px','width':(vl.names[0].hitWid.bdWd+'px')}" [src]="vl.names[0].base64">
    </ion-list>
  </div>

But when I do run it it gives following error:

error_handler.js:51 TypeError: self.parent.parent.context.parseInt is not a function
    at DebugAppView._View_HomePage9.detectChangesInternal (HomePage.ngfactory.js:1444)
    at DebugAppView.AppView.detectChanges (view.js:272)
    at DebugAppView.detectChanges (view.js:377)
    at DebugAppView.AppView.detectContentChildrenChanges (view.js:290)
    at DebugAppView._View_HomePage8.detectChangesInternal (HomePage.ngfactory.js:1407)
    at DebugAppView.AppView.detectChanges (view.js:272)
    at DebugAppView.detectChanges (view.js:377)
    at DebugAppView.AppView.detectContentChildrenChanges (view.js:290)
    at DebugAppView._View_HomePage0.detectChangesInternal (HomePage.ngfactory.js:270)
    at DebugAppView.AppView.detectChanges (view.js:272)

I'm trying to assign height to a img using ngStyle and for that I'm calculating height with some Math operation as follows:

<div [ngSwitch]="tbNm?tbNm:'itm0'">
    <ion-list *ngFor="let vl of scrnshot;let ind=index">
      <img *ngSwitchCase="'itm'+ind" alt="Akhilesh" [ngStyle]="{'height':(parseInt(vl.names[0].hitWid.bdHt+(websitTyp(vl._id.origin)?100:0)))+'px','width':(vl.names[0].hitWid.bdWd+'px')}" [src]="vl.names[0].base64">
    </ion-list>
  </div>

But when I do run it it gives following error:

error_handler.js:51 TypeError: self.parent.parent.context.parseInt is not a function
    at DebugAppView._View_HomePage9.detectChangesInternal (HomePage.ngfactory.js:1444)
    at DebugAppView.AppView.detectChanges (view.js:272)
    at DebugAppView.detectChanges (view.js:377)
    at DebugAppView.AppView.detectContentChildrenChanges (view.js:290)
    at DebugAppView._View_HomePage8.detectChangesInternal (HomePage.ngfactory.js:1407)
    at DebugAppView.AppView.detectChanges (view.js:272)
    at DebugAppView.detectChanges (view.js:377)
    at DebugAppView.AppView.detectContentChildrenChanges (view.js:290)
    at DebugAppView._View_HomePage0.detectChangesInternal (HomePage.ngfactory.js:270)
    at DebugAppView.AppView.detectChanges (view.js:272)

• javascript
• angular

Share Improve this question Follow asked Oct 5, 2016 at 6:14 Akhilesh KumarAkhilesh Kumar 9,3651313 gold badges6161 silver badges9797 bronze badges

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1 Answer 1

Sorted by: Reset to default 10

Per documentation:

Perhaps more surprising, template expressions cannot refer to anything in the global namespace. They can’t refer to window or document. They can’t call console.log or Math.max. They are restricted to referencing members of the expression context.

https://angular.io/docs/ts/latest/guide/template-syntax.html

You can work around it like:

class Component {
  myParseInt = parseInt;
}

html

[ngStyle]="{'height':(myParseInt (...

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