<p><pre><code> user system total real
str.casecmp(x): 0.150000 0.000000 0.150000 ( 0.147026)
str.include?(x): 0.220000 0.000000 0.220000 ( 0.224157)
str =~ /x/: 0.620000 0.000000 0.620000 ( 0.619257)
str[x]: 0.480000 0.000000 0.480000 ( 0.476655)
str.match(x): 1.240000 0.000000 1.240000 ( 1.244419)
str.scan(x): 2.260000 0.000000 2.260000 ( 2.259026)</code></pre>