In the first case "this" is window, because it's inherited from whatever scope you call it.
For example, in this case it won't be window:
!function() { ((n) => console.log(this))() }.call({foo: 'bar'})
In the second case "this" is window as well. But second case won't get executed, because you're running built-in String.prototype.repeat instead. :P
10.02.2014, 12:54, "Hemanth H.M" <hemanth...@gmail.com>:
I do understand Arrow functions are like built-in functions in that both lack .prototype and any [[Construct]] internal method.,But why does the scope refer to the global in case of :```String.prototype.repeat = (n) => Array(+n+1).join(this);
"ES6 ".repeat(3);
// will result in "[object Window][object Window][object Window]"```Whereas:```String.repeat = (n) => Array(+n+1).join(this);
"ES6 ".repeat(3) // Works fine resulting in "ES6 ES6 ES6"```
Sorry if I'm missing something trivial. I did go through spec.
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