String#end_with?

str.end_with?(*suffixes) -> true or false

Returns: boolean · Updated March 13, 2026 · String Methods

strings pattern-matching checking

The end_with? method checks whether a string ends with one or more specified suffixes. It returns true if the string ends with any of the given substrings, otherwise false. This method is case-sensitive.

Syntax

str.end_with?(*suffixes)

Parameters

Parameter	Type	Default	Description
`*suffixes`	`String`	—	One or more substrings to check as potential endings

Examples

Basic usage

"hello".end_with?("o")
# => true

"hello".end_with?("lo")
# => true

"hello".end_with?("ll")
# => false

Checking multiple suffixes

"document.txt".end_with?(".txt", ".pdf", ".doc")
# => true

"image.png".end_with?(".txt", ".pdf")
# => false

Case sensitivity

"Ruby".end_with?("ruby")
# => false

"Ruby".end_with?("Ruby")
# => true

Common Patterns

File extension checking

def text_file?(filename)
  filename.end_with?(".txt", ".md", ".rtf")
end

text_file?("readme.md")      # => true
text_file?("script.rb")      # => false

URL path validation

def html_page?(path)
  path.end_with?(".html", ".htm")
end

html_page?("/about.html")   # => true
html_page?("/about")        # => false