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Ruby Assignment Operators

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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