What are common string operations such as concatenation, comparison, and searching?

Strings are sequences of characters, and common operations include concatenation, comparison, searching, slicing, and transformation. These operations look simple, but performance depends on how strings are stored, whether they are mutable, and which algorithms power the operation.

Strings are one of the most frequently used data structures in programming. A string is usually represented as an ordered sequence of characters, such as "hello" or "user@example.com". Most languages provide built-in operations because developers constantly need to combine, compare, and locate text.

Concatenation: joining strings

Concatenation combines two or more strings into a new string.

Example:

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