In Ruby we use Object#send to invoke a method by name at runtime.
The first argument is the name of the method we're calling, and the rest is a
variable list of arguments to send to that method similar to
call_user_func in PHP. We can pass in array of arguments similar
to that in call_user_func_array by prefixing the array argument
with a glob operator (*). This operator will expand the array to
be passed in as variable arguments.
{{code:php function titleize($value, $delim='-') { return strtolower(str_replace(' ', $delim, $value)); }
$args = array('my post title', '-');
$result = call_user_func_array('titleize', $args);
var_export($result);
// => my-blog-post
}}
{{code:ruby def titleize(value, delim='-') value.gsub(' ', delim).downcase end
args = ["my post title", '-']
send(:titleize, *args)
# => my-blog-post
}}
{{related: funchand/call_user_func }}