Question

Write a function to extract the first name in the string “Mrs. Jake Luther”?

(a) Substring

(b) Substr

(c) Substi

(d) Return

I got this question in an online interview.

I want to ask this question from Functions topic in section Control Structures, Functions, Scoping Rules, Loop Functions and Debugging of R Programming

Answer 1

The correct answer is (b) Substr

The best I can explain: The substr() function gives a part of a string. The substr() method will give parts of a string, beginning at the character of the specified position, and returns the specified number of characters.