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    <p>Your best bet is to use <code>innerText</code> or <code>textContent</code> to get at the text without the tags and then just use the regex <code>/\d/g</code> to get the numbers.</p> <pre><code>function digitsInText(rootDomNode) { var text = rootDomNode.textContent || rootDomNode.innerText; return text.match(/\d/g) || []; } </code></pre> <p>For example,</p> <pre><code>alert(digitsInText(document.body)); </code></pre> <p>If your HTML is not in the DOM, you can try to strip the tags yourself : <a href="https://stackoverflow.com/questions/5002111/javascript-how-to-strip-html-tags-from-string">JavaScript: How to strip HTML tags from string?</a></p> <hr> <p>Since you need to do a replacement, I would still try to walk the DOM and operate on text nodes individually, but if that is out of the question, try</p> <pre><code>var HTML_TOKEN = /(?:[^&lt;\d]|&lt;(?!\/?[a-z]|!--))+|&lt;!--[\s\S]*?--&gt;|&lt;\/?[a-z](?:[^"&gt;']|"[^"]*"|'[^']*')*&gt;|(\d+)/gi; function incrementAllNumbersInHtmlTextNodes(html) { return html.replace(HTML_TOKEN, function (all, digits) { if ("string" === typeof digits) { return "" + (+digits + 1); } return all; }); } </code></pre> <p>then</p> <pre><code>incrementAllNumbersInHtmlTextNodes( '&lt;b&gt;123&lt;/b&gt;Hello, World!&lt;p&gt;I &lt;3 Ponies&lt;/p&gt;&lt;div id=123&gt;245&lt;/div&gt;') </code></pre> <p>produces</p> <pre><code> '&lt;b&gt;124&lt;/b&gt;Hello, World!&lt;p&gt;I &lt;4 Ponies&lt;/p&gt;&lt;div id=123&gt;246&lt;/div&gt;' </code></pre> <p>It will get confused around where special elements like <code>&lt;script&gt;</code> end and won't recognize digits that are entity encoded, but should work otherwise.</p>
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    1. POHow to get numbers in elements' inner text by javascript's regex
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    1. COI'll +1 you if you'll put `textContent` before `innerText`. :-)
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    2. CO@thesystem, done.
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    3. COThank you for your answer, but i'm still wondering to find a regular expression which can find inner text of elements in a string.
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