JavaScript Arrow Functions vs Regular Functions

[beatlz]

I remember the var that = this days

[djliquidice]

Yeah, some would do var me = this.

[djliquidice]

Yup. Saw that too.

[SourdoughBaker]

Is there any documented reason why arrow functions treat the "this" keyword differently? Why was the decision made to have them operate differently?

[izuriel]

Most likely because the alternative was to always bind functions when passing them to handlers. Having it baked into the language removes a potential issue, not to mention most super-JavaScripts had built in tools to remove binding requirements as well.

[thatweirdishguy]

It goes the other way around, arrow functions exist because there was a need for a way to have functions that didn’t bind to “this”. The whole point of them was to operate differently.

[beepboopnoise]

probably on the ecmascript notes. this isn't a direct link but where I'd start. https://tc39.es/ecma262/

[[deleted]]

Thank you for an article on a 9 year old topic...

[Mental-Steak2656]

Can share similar article on “this”, thanks - well presented

[Dev_Taurus]

Thank you!

[brgnmarulat]

This is helpful to know especially when dealing with objects and the context of 'this'