JavaScript's .split() being stupid

gistfile1.coffee

# Let's say we have an email message body with some headers and then the email
# content. Just like HTTP, headers\n\nbody
string = "Header: here\n\nHere is an email\n\nwith some line breaks\n\nand stuff"

# What you'd expect (what PHP's explode() does)
string.split("\n\n", 2) == [ "Header: here", "Here is an email\n\nwith some line breaks\n\nand stuff" ] # false

# What you actually get
string.split("\n\n", 2) == [ "Header: here", "Here is an email" ] # true

# In order to get what we need (that is to say, to get the full string
# after the first \n\n, ignoring any remaining \n\ns), we need to implement
# our own explode() equivalent:

String::explode = (delimiter, limit) ->
    splitted = this.split(delimiter)
    array = splitted.splice 0, limit - 1
    superfluous = splitted.join delimiter

    array.push superfluous

    array