concats 2 strings


## Description

It takes 2 or more arguments, converts them to strings and concats them.

`strConcat(word1, word2, ...)`

- `word1` - a string or number
- `word2` - a string or number

## Usage

- `strConcat('this ', 'is a word')` - returns 'this is a word'
- `strConcat(1,2)` - returns '12'
- `strConcat(1,"a")` - returns '1a'
- `strConcat("a",12, "b", " ", 17)` - returns 'a12b 17'