Question: I have two data frame like below, I would like to compare value of these table together (based on same rows and colnames) and specified same values with TRUE otherwise with FALSE.

```
data1:

      id              A               B              C
      m1              2               2              2
      m2              2               1              2

data2:

      id              A               D              B
      m1              1               2              2
      m2              2               3              2

Output:

      id                  A             B
      m1              FALSE          TRUE
      m2              TRUE          FALSE

```

Answer: 
I just removed the Rx before Observable-

```
var obs = Observable.interval(500)
   .take(5)
   .do(i => console.log(i) );

```
1. npm install rxjs

*counter.ts*

```
import {Observable} from 'rxjs/Observable';
import 'rxjs/add/observable/interval';

// To get the typescript compiler to recognise Rx.* execute.
// npm install @types/rx --save-dev

let obs = Observable.interval(1000);

obs.subscribe(value => console.log("Subscriber: " + value));

```

2. tsc counter.ts
3. node counter.js

Subscriber: 0

Subscriber: 1

Subscriber: 2

^C