How to Check if String is Empty in Ruby - Step by Step Examples
How to Check if String is Empty in Ruby ?
Answer
To check if a string is empty in Ruby, you can use the empty?
method.
✐ Examples
1 Check if String is Empty using empty? method
In this example,
- We create a variable named
str1
with an empty string value""
. - We use the
empty?
method onstr1
to check if it is empty. - The
empty?
method returnstrue
if the string is empty, otherwisefalse
. - Finally, we print the result to the console.
Ruby Program
str1 = ""
isEmpty = str1.empty?
puts "Is string empty: #{isEmpty}"
Output
Is string empty: true
2 Check if String is Empty using empty? method with non-empty string
In this example,
- We create a variable named
str2
with a non-empty string value"Hello World"
. - We use the
empty?
method onstr2
to check if it is empty. - The
empty?
method returnstrue
if the string is empty, otherwisefalse
. - Finally, we print the result to the console.
Ruby Program
str2 = "Hello World"
isEmpty = str2.empty?
puts "Is string empty: #{isEmpty}"
Output
Is string empty: false
Summary
In this tutorial, we learned How to Check if String is Empty in Ruby language with well detailed examples.
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