ForNext
Only Do What Only You Can Do
127. size
Hyperpolyglot Interpreted Languages: PHP, Perl, Python, Ruby より (2012.05.08)
VBScript
JScript
Perl
scalar(keys %d)
PHP
count($d)
Python
len(d)
Ruby
d.size d.length # same as size
scalar(keys %d)
count($d)
len(d)
d.size d.length # same as size