Question

Differentiate between User Defined Functions and Library Functions.
What do you undorotond hwtho torm String Concatenation?​

Answer 1

1 Answer :-User-defined Functions

These function are created by user as per their own requirement.

Library Functions

These functions are not created by user as their own.

2Answer :-Syntax. In many programming languages, string concatenation is a binary infix operator. The + (plus) operator is often overloaded to denote concatenation for string arguments: "Hello, " + "World" has the value "Hello, World" .

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Answer 2

Answer:

Concatenation, in the context of programming, is the operation of joining two strings together. The term"concatenation" literally means to merge two things together. Also known as string concatenation.