Fastest way to find a substring

<p>I&#39;m trying to find a substring in a title, but I don&#39;t know if I should go with regexp or strings library. I&#39;m not looking for complex stuffs, only for a simple string match. I only need to be the most efficient way since I&#39;m gonna use it on a slice, ty!</p> <hr/>**评论：**<br/><br/>dlsniper: <pre><p>Regardless of the solution you should benchmark it. You may think that a solution is fast or slow but the reality is that until you measure its pretty much the fastest and the slowest at the same time.</p></pre>dgryski: <pre><p><a href="https://blog.gopheracademy.com/advent-2014/string-matching/" rel="nofollow">https://blog.gopheracademy.com/advent-2014/string-matching/</a></p></pre>gohacker: <pre><p>The regexp package is more powerful, but slower. For slices use <a href="https://golang.org/pkg/bytes/" rel="nofollow">https://golang.org/pkg/bytes/</a></p></pre>shark1337: <pre><p>I&#39;m only looking for something like this: hasSubstring(&#34;my own text&#34;, &#34;own&#34;) bool {} but it has to be the fastest way ;)</p></pre>danredux: <pre><p>strings.Contains</p></pre>jerf: <pre><p>Can confirm. I just read the source code and it is well-tuned, not just a naive algorithm. You might be able to outdo it in very specific cases with a really good algorithm but it won&#39;t be easy.</p></pre>