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    <p>Your question can be split into two parts:</p> <ol> <li>How can we get the the webpage text content without HTML tags?</li> </ol> <p>We can generalize the second question a bit.</p> <ol start="2"> <li>How can we find the number of string occurrences in another string?</li> </ol> <p>And the 'best possible way to do this':</p> <p>Amaan got the idea right of finding the text, but lets take it further.</p> <pre><code>var text = document.body.innerText || document.body.textContent; </code></pre> <p>Adding <code>textContent</code> to the code helps us cover more browsers, since <code>innerText</code> is not supported by all of them.</p> <p>The second part is a bit trickier. It all depends on the number of '$' symbol occurrences on the page.</p> <p>For example, if we know for sure, that there is at least one occurrence of the symbol on the page we would use this code:</p> <pre><code>text.match(/\$/g).length; </code></pre> <p>Which performs a global regular expression match on the given string and counts the length of the returned array. It's pretty fast and concise.</p> <p>On the other hand, if we're not sure if the symbol appears on the page at least once, we should modify the code to look like this:</p> <pre><code>if (match = text.match(/\$/g)) { match.length; } </code></pre> <p>This just checks the value returned by the match function and if it's null, does nothing.</p> <p>I would recommend using the third option only when there is a large occurrence of the symbols in the page or you're going to perform the search many many times. This is a custom function (taken from <a href="https://stackoverflow.com/a/7924240/691148">here</a>) to count the occurrence of the specified string in another string. It performs better than the other two, but is longer and harder to understand.</p> <pre><code>var occurrences = function(string, subString, allowOverlapping) { string += ""; subString += ""; if (subString.length &lt;= 0) return string.length + 1; var n = 0, pos = 0; var step = (allowOverlapping) ? (1) : (subString.length); while (true) { pos = string.indexOf(subString, pos); if (pos &gt;= 0) { n++; pos += step; } else break; } return (n); }; occurrences(text, '$'); </code></pre> <p>I'm also including a little jsfiddle <a href="http://jsfiddle.net/qgnYT/" rel="nofollow noreferrer">'benchmark'</a> so you can compare these three different approaches yourself.</p> <p>Also: No, there isn't a better way of doing this than just getting the body text and counting how many '$' symbols there are.</p>
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