Ruby Assignment Operators

Last update on August 19 2022 21:50:33 (UTC/GMT +8 hours)

Assignment Operators

In Ruby assignment operator is done using the equal operator "=". This is applicable both for variables and objects, as strings, floats, and integers are actually objects in Ruby, you're always assigning objects.

Operator	Name	Description	Example
=	Equal operator "="	Simple assignment operator, Assigns values from right side operands to left side operand	z = x + y will assign value of a + b into c
+=	Add AND	Adds right operand to the left operand and assign the result to left operand	x += y is equivalent to x = x + y
-=	Subtract AND	Subtracts right operand from the left operand and assign the result to left operand	x -= y is equivalent to x = x - y
*=	Multiply AND	Multiplies right operand with the left operand and assign the result to left operand	x = y is equivalent to x = x y
/=	Divide AND	Divides left operand with the right operand and assign the result to left operand	x /= y is equivalent to x = x / y
%=	Modulus AND	Takes modulus using two operands and assign the result to left operand	x %= y is equivalent to x = x % y
**=	Exponent AND	Performs exponential calculation on operators and assign value to the left operand	x = y is equivalent to x = x y

Example: Ruby assignment operator

puts ("assignment operator in Ruby")
x = 47
puts ("abbreviated assignment add")
puts x += 20
puts ("abbreviated assignment subtract")
puts x -= 20
puts ("abbreviated assignment multiply")
puts x *= 4
puts ("abbreviated assignment divide")
puts x /= 4
puts ("abbreviated assignment modulus") 
puts x %= 6
puts ("abbreviated assignment exponent")
puts x **= 4

Output:

assignment operator in Ruby
abbreviated assignment add
67
abbreviated assignment subtract
47
abbreviated assignment multiply
188
abbreviated assignment divide
47
abbreviated assignment modulus
5
abbreviated assignment exponent
625

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