Ruby | Matrix collect() function

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:

Ruby

# 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?()

Output:

false

Example 2:

Ruby

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

Output:

true

Ruby | Matrix collect() function

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