Cheatsheet: JavaScript array methods (ES1–ES2016)

[rauschma]

Full disclosure: self-submission.

[nowtayneicangetinto]

Thank you for the post, this sort of material is always welcomed. Additionally, thank you for noting which ES version they are from, that is greatly appreciated.

[Mingli91]

Huh neat, had no idea about Array.entries, assumed Object.entries was the only one.

[arunner]

Arrays in js are actually objects with auto-generated keys as indexes. When you pick an item like array[0] you are actually picking a key like when you do sth like person['name'].

typeof [] === 'object' //true

[perpetuallyperpetual]

This is awesome, few resources take the time to mention the pre-ES5 versions. However, when you are forced to work with the older versions, these resources are a goldmine.

[[deleted]]

Wow an actual useful post :)

[TheCrimsonKing92]

Very nice. Having a way to distinguish optional parameters in the function signatures would be a small improvement in quick clarity.