Question

Which of these functions are used to partially or fully substitute a string?

(a) replace()

(b) size()

(c) subs()

(d) substring()

This question was posed to me in an online quiz.

I would like to ask this question from String Manipulation topic in portion Arduino Programming of Arduino

Answer 1

Right answer is (a) replace()

Best explanation: The replace function works with 3 arguments; the index in the source string, the string to be substituted with, and the string variable. It can be used as “str.replace(a,b, “hello”);” where ‘b’ characters are replaced from index ‘a’ in ‘str’.