Maintenance Ruby 3.4 gets fixes, but no new features. Switch to Ruby 4.0 →
instance method
String#empty?
() -> bool
empty? → true or false
string.c
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static VALUE
rb_str_empty(VALUE str)
{
return RBOOL(RSTRING_LEN(str) == 0);
}
Returns true if the length of self is zero, false otherwise:
Example
"hello".empty? # => false " ".empty? # => false "".empty? # => true
See also
#each_line
#encode
#each_grapheme_cluster
#encode!
also in
4.1 · 4.0 · 3.3 · 3.2 · 3.1 · 3.0