Ruby - Logical operators

1. Introduction

Logical operators in Ruby are used to determine the logic between variables or values. They play a crucial role in conditions and decision-making processes in programs.

2. Program Steps

1. Initialize sample variables.

2. Apply and demonstrate the logical operators on the initialized variables.

3. Code Program

# Initialize sample variables
a = true
b = false
# Logical AND
and_result = a && b
puts "Logical AND: #{a} && #{b} = #{and_result}"
# Logical OR
or_result = a || b
puts "Logical OR: #{a} || #{b} = #{or_result}"
# Logical NOT
not_result = !a
puts "Logical NOT: !#{a} = #{not_result}"
# Use of 'and' and 'or'
# These are lower precedence than their counterparts '&&' and '||'
c = nil
d = "Hello"
and_low_result = c and d
or_low_result = c or d
puts "Result of 'and' with lower precedence: #{and_low_result}"
puts "Result of 'or' with lower precedence: #{or_low_result}"

Output:

Logical AND: true && false = false
Logical OR: true || false = true
Logical NOT: !true = false
Result of 'and' with lower precedence:
Result of 'or' with lower precedence: Hello

Explanation:

1. The Logical AND (&&) operator returns true if both operands are true and false otherwise.

2. The Logical OR (||) operator returns true if at least one of its operands is true and false otherwise.

3. The Logical NOT (!) operator returns true if its operand is false and false if its operand is true.

4. The and and or operators work similarly to && and ||, but they have lower precedence. This can lead to unexpected results if not used carefully. For instance, in the example above, the or_low_result returns "Hello" because the assignment has a higher precedence than or.


Related Ruby Examples:

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Ruby Tutorials

Ruby Hash Tutorial Ruby String Tutorial Ruby Array Tutorial Ruby - Match a Pattern in a String Ruby - map Function Example Ruby - reduce Function Example Ruby - select Function Example Ruby - Date and Time Example Ruby - Create and Execute a Basic Thread Ruby - Main Thread and Sub-threads Ruby - Pause Execution of Thread Using sleep Ruby - Terminate a Thread Using Thread.kill Ruby - Check Status of a Thread Using alive? Ruby - Thread Priority Example Ruby - Use Thread.pass for Thread Scheduling Ruby - Thread Local Variables Ruby Convert String to Hash Ruby Convert String to JSON Ruby Convert String to Integer Ruby Convert String to Array Ruby Convert String to Date Ruby Convert String to CamelCase Ruby Convert String to Boolean Ruby Convert String to Float Ruby Convert String to DateTime Ruby Convert Number to String Ruby Convert Number to Binary Ruby Convert Number to Boolean Ruby Convert List to Set Ruby Convert List to String Ruby Convert List to Hash Ruby Convert List to Map Ruby Convert Array to List Ruby Convert Array to Hash Ruby Convert Array to Hash With Index as Key Ruby Convert Array to Set Ruby Convert Array to String Comma Separated Ruby Convert Array of Strings to Integers Ruby Convert Array to JSON Ruby Convert Array of Hashes to JSON Ruby Convert Hash to JSON Ruby Convert Hash to String Ruby Convert Hash to Array Convert Hash Keys to Strings Ruby Convert Date to DateTime Ruby Convert Date to Epoch Ruby Convert Date to TimeStamp Ruby Convert Date to Milliseconds

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