The `~` operator is clearly not great while reading a source code.I'm not here to discuss that. I'm looking for a function inside standard library.
The function should be straightforward, up to two words. Here is what I expect from a programming language: Pseudo example: ``` import std; void main(){ string word = hello; join(word, 'f', " ", "World"); writeln(word); // output: hellof World } ```