How to check type of variable in ngIf in Angular2

Question

I\'m learning Angular2. I have a component with a variable which is an object. I\'m iterating over the fields of the object, and acording to the type of data of that positio

Answer 1

Globals like window, typeof, enums, or static methods are not available within a template. Only members of the component class and typescript language constructs are available.

You can add a helper method to your component like

isNumber(val): boolean { return typeof val === 'number'; }

and use it like