Checking if an object is null or undefined in angular 2

Question

I have 2 object, one takes person details and other one takes address details via form. And each object has 3 fields. Now, before I send this to my parent, I need an check if condition these 2 objects are not undefined or null

I have tried these conditions and all fail:

=> !(this.person)&&!(this.address)

=> this.person !=(null || undefined)

I know that I can also compare each property of the object to null or undefined but can't write 6 conditions, because it breaches coding standards.

So guys please help me with this

Answer 1

Its not really and Angular things its more to do with Javascript. A double equal to null will return true if its null or undefined.

if (someValue == null) {
 // Do something if null or undefined
}

This table should help.