The + operator, when applied to strings, performs:

The correct answer is B. Concatenation. When the + operator is applied to strings, it performs concatenation - joining two or more strings end-to-end (e.g., "Hello" + " World" produces "Hello World"). Options A, C, and D (subtraction, multiplication, division) are arithmetic operations that apply to numbers, not…

Question

The + operator, when applied to strings, performs:

Options

ASubtraction
BConcatenation
CMultiplication
DDivision

How the community answered

(51 responses)

A
2% (1)
B
76% (39)
C
8% (4)
D
14% (7)

Explanation

When the + operator is applied to strings, it performs concatenation - joining two or more strings end-to-end (e.g., "Hello" + " World" produces "Hello World"). Options A, C, and D (subtraction, multiplication, division) are arithmetic operations that apply to numbers, not strings; most languages will either throw an error or produce unexpected results if you attempt these on string types. Option B is correct because + is overloaded in most programming languages to serve dual purposes: arithmetic addition for numbers and concatenation for strings. A handy memory tip: think of concatenation like gluing strings together - the + sign is the "glue," and just as you'd add building blocks in sequence, strings are joined in the order they appear.

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