<blockquote>Because indexOf tramples evaluate in term of execution time. While this is a small script, xpath definitely isn't the best option.</blockquote> I got evaluate to perform better than indexOf. <pre> javascript:words="Because it's your web."; start=new Date().getTime(); regex = new RegExp(words); if(regex.exec(document.body.innerHTML)) alert("regexp: "+(new Date().getTime()-start)); start=new Date().getTime(); if (document.evaluate('//child::text()[contains(.,"'+words+'")]', document, null, 9, null).singleNodeValue) alert("evaluate: "+(new Date().getTime()-start)); start=new Date().getTime(); if (document.body.innerHTML.indexOf(words)>-1) alert("indexOf: "+(new Date().getTime()-start)); </pre> <p><blockquote>Because indexOf tramples evaluate in term of execution time. While this is a small script, xpath definitely isn't the best option.</blockquote></p> <p>I got evaluate to perform better than indexOf.</p> <p><pre> javascript:words="Because it's your web."; start=new Date().getTime(); regex = new RegExp(words); if(regex.exec(document.body.innerHTML)) alert("regexp: "+(new Date().getTime()-start)); start=new Date().getTime(); if (document.evaluate('//child::text()[contains(.,"'+words+'")]', document, null, 9, null).singleNodeValue) alert("evaluate: "+(new Date().getTime()-start)); start=new Date().getTime(); if (document.body.innerHTML.indexOf(words)>-1) alert("indexOf: "+(new Date().getTime()-start)); </pre></p> 2008-12-20T12:47:58Z 2 Forum 84969 18247 2008-12-20T12:47:58Z 21593