capitalize!

str.capitalize! â str or nil

Instance Public methods

Modifies str by converting the first character to uppercase and the remainder to lowercase. Returns nil if no changes are made. Note: case conversion is effective only in ASCII region.

a = "hello"
a.capitalize!   #=> "Hello"
a               #=> "Hello"
a.capitalize!   #=> nil

doc_ruby_on_rails

2025-01-10 15:47:30

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