Sid Verma Unnecessary tautology is unnecessary

Mathematical operations on objects in javascript.

All of these were executed on Node.js 6.9.1

> [] + []
''

Obviously.

> [] + {}
'[object Object]'

Less obvious, but okay.

> {} + []
0

Huh?

> {} + {}
'[object Object][object Object]'

Oh, fuck off.

I’d rather just add strings to these from now on:

> [] + ''
''
> [] + '1'
'1'
> [] + 'a'
'a'
> {} + ''
0
> {} + '1'
1
> {} + 'a'
NaN

Lol.

Okay, subtraction maybe:

> [] - []
0
> {} - {}
NaN
> [] - ''
''
> [] - '1'
-1
> [] - {}
NaN

FML.

But, my favorite one is this:

> {} - []
-0

Follow-up post: Minimalistic javascript packages

- Sid Verma | Twitter