On: How JavaScript Works: deep dive into call, apply, ...

[kecupochren]

I've literally never used them during my 8 years of working as a JS dev. Maybe I'm doing it wrong.

Edit: actually I did use .bind with React before arrow functions came

[hajile → kecupochren]

Until for..of came around, `Array.prototype.map.call($nodeList, myFn)` was pretty much the way to iterate over things that were "array-like" but didn't actually inherit from Array, so didn't have such methods.

[nicoburns → kecupochren]

They were pretty widely used (especially in library code) before arrow functions were added to the language.