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Ruby | Matrix empty?() function
  • Last Updated : 07 Jan, 2020

The empty?() is an inbuilt method in Ruby returns a boolean value. It returns true if the matrix is empty, else it returns false.

Syntax: mat1.empty?()

Parameters: The function does not accepts any parameter.

Return Value: It returns a boolean value.

Example 1:



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# Ruby program for empty() method in Matrix
   
# Include matrix 
require "matrix"
   
# Initialize a matrix 
mat1 =  Matrix[[1, 21], [31, 18]]       
   
# prints if empty or not 
puts  mat1.empty?()

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Output:

false

Example 2:

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# Ruby program for empty() method in Matrix
   
# Include matrix 
require "matrix"
   
# Initialize a matrix 
mat1 =  Matrix[]       
   
# prints if empty or not 
puts  mat1.empty?()

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Output:

true
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