How to use attributes in strings?

Question

iOS

Greetings!
I will immediately explain my question with an example, there is a line:

let simpleText = """
Любые отходы природного происхождения - яичная скорлупа, 
остатки пищи, чайная и кофейная гуща, остатки фруктов и овощей, 
биополимерная упаковка, а также сырые бумажные отходы 
являются биоразлагаемыми компостируемыми материалами.
"""

How to make, for example, the word "waste" (word 2) highlighted in bold? Or any other word to change its size. In the line itself, maybe there are some chips that I have not heard about. The result should be 1 line with words of different sizes or fonts. I know that it is possible through NSMutableAttributedString, but how then to make string concatenation?

Answer 1