安全的字符串片

Question

我有一个字符串，我想要250个或更少的字符。我是用java方式做的，但是有一个常规的快捷方式：

def longString = "This is my really long string.This is my really long string.This is my really long string.This is my really long string.This is my really long string.This is my really long string.This is my really long string.This is my really long string.This is my really long string.This is my really long string.This is my really long string.This is my really long string.This is my really long string.This is my really long string.This is my really long string.This is my really long string.This is my really long string.This is my really long string."
def shortString = "This is my really short string."

#ideal would be something like:
return longString[0..250]
#versus how i currently have it
#how can i simplify this one...
return shortString.size() < 250? shortString: shortString.substring(0,250) 

Answer 1

You can use take：

String shortString = longString.take( 250 )