Already put in task, I write it in response:
The function you ask for does not exist. For the simple fact that you think you need it does not mean that it is going to come already defined by the language, for that you can define new functions.
The function you ask for does not make sense. Unicode assigns a numeric value to each symbol. It is a relation of symbols to numbers. A String is NOT a symbol, it is a collection of symbols. THERE IS NO UNICODE FOR STRINGS.
Concatenating the unicodes of the Strings is not equivalent. The example of the comments; concatenate the values of l
and a
is not "the Unicode of la
".
The function you request can not work correctly. By concatenating the numbers you have a string of numbers, but that string of numbers can be reached from several different Source Strings. For the value 10897
can come from the concatenation of la
, or ⪑
, or 	
; all of which are valid options. How is the function supposed to guess the original value?
Having said that, if you want to implement the function, you only have to put a symbol between the different values of Unicodes in order to obtain the original letters; if for example you put a space, you can implement the function that takes "108 97", separate the String by the space and retrieve the letter corresponding to each value. But nothing of predefined function, nothing of "Unicode de String" and nothing of "mix everything and see what happens".