In Go, an assignment statement is used to assign a value to a variable or a constant. It is one of the most basic building blocks of any Go program, and is used extensively in every Go program.
An assignment statement in Go consists of an expression on the right-hand side of the equal sign (=), and a variable or a constant on the left-hand side of the equal sign. The value of the expression is then assigned to the variable or the constant.
Here is an example of an assignment statement in Go:
x := 10
In this example, the value 10 is assigned to the variable x using the := operator, which is used for short variable declaration.
In addition to the := operator, Go also supports the = operator for assignment statements. However, the = operator is used only when assigning a value to a variable that has already been declared.
Here is an example of using the = operator for assignment:
var x int
x = 10
In this example, the variable x is declared using the var keyword, and then the value 10 is assigned to it using the = operator.
Practice Questions on assignment statements in Golang
Here are five practice questions on assignment statements in Go:
What is the purpose of an assignment statement in Go?
A) To declare a variable or a constant.
B) To assign a value to a variable or a constant.
C) To define a function.
D) To import a package.
Answer: B
Which operator is used for short variable declaration in Go?
A) =
B) :=
C) ==
D) >
Answer: B
Which operator is used for assignment statements in Go?
A) =
B) :=
C) ==
D) >
Answer: A
What is the difference between the := operator and the = operator in Go?
A) The := operator is used for assignment, while the = operator is used for short variable declaration.
B) The := operator is used for short variable declaration, while the = operator is used for assignment.
C) The := operator and the = operator are interchangeable.
D) There is no difference between the := operator and the = operator.
Answer: B
What is the correct syntax for declaring and assigning a value to a constant in Go?
A) const x = 10
B) var x = 10
C) x := 10
D) const int x = 10
Answer: A