Hi Sri,
First, you are adding null code to your app.
.subscribe(
data => this.filter(data),
err => console.error(err),
() => console.log('done')
);
is exactly the same as:
.subscribe(
this.filter,
err => console.error("Oops, an err:",err),
() => console.log('done')
);
secondly, I think your code throws a empty error, so you get an undefined.
Put some text in your log's so you know where the console outputs are
originating..
Then log the data in the filter function outside of the if statement first,
so you know where to look for trouble.
Hope this helps,
Regards
Sander
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