2

I have the following code: 

function foo(){
    console.log(this.a);
}

var a = 2;

foo();

The code above gives 2 when run in browser console. I run the same code in the terminal by doing node up-and-going.js and got undefined.

What am I missing?

PS: I'm new to JavaScript.

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Jonas Wilms
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lomse
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  • The "default" scope/context in nodejs is different – Jonas Wilms Dec 05 '17 at 13:07
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    @charlieftl bad dupe, nodejs isnt mentioned at all – Jonas Wilms Dec 05 '17 at 13:09
  • @JonasW. https://stackoverflow.com/questions/20861049/this-different-between-repl-and-script https://stackoverflow.com/questions/25058814/what-does-this-mean-in-a-nodejs-module [Meaning of "this" in node.js modules and functions](https://stackoverflow.com/q/22770299/1048572)? – Bergi Dec 05 '17 at 13:13
  • I understand that in a browser, the `this` in my example refers to the browser global variable `window` since the function `foo();` was invoked globally. Can anyone tell me if I get it right? – lomse Dec 05 '17 at 13:21
  • @JonasW. any feedback on my comment? – lomse Dec 05 '17 at 13:27
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    @lomse yes, but that works differently in nodejs – Jonas Wilms Dec 05 '17 at 14:20

0 Answers0