what is the difference between .split(), .split('') and .split(' ') ?

AFAIK there is no difference between the first two(the both split at every character) the last one splits at every space char. So "ab ab" becomes ['a', 'b', ' ', 'a', 'b'] for the first two vs ['ab', 'ab'] for the last one

hate to be that guy but...google it! Or try it yourself, you have a JS console in every browser. You should never be afraid to just go for it with stuff like this!

My tests got me this:

"Hello World!".split()
>["Hello World!"]

"Hello World!".split('')
>(12) ["H", "e", "l", "l", "o", " ", "W", "o", "r", "l", "d", "!"]

"Hello World!".split(' ')
>(2) ["Hello", "World!"]

So, looks like no args gives you back your input, blank delimiter gives you back an array of chars, and then a space character is making your delimiter a space, so it will split the word on each space. I'm not super familiar with JS but I'm guessing most of this is right

@tpanfl you are right

@tpanfl FTFY: No args gave you your original input _as the single item in an array_, which conforms with the idea of a split, but tells us that no split was actually performed for that test case.

I'm not a JS developer, furthermore I'm on mobile without access to an interpreter ATM, but maybe split(noargs) does newlines?

@tokumei would sound reasonable

@tokumei I think that would be split("\n")

dR != SO